What number comes next?

132110111221

first its 01 (one 0, one 1) etc.... so

its one 3 two 1 one 0 one 1 one 2 and two 1!!!!

1011

132110111221.

To explain:

01 - first number in the series.

1011 - second number in the series. This describes the two digits in the first number series ("01") -- first digit is "0", so it means that there is one (1) zero (0); and second digit is "1", which means that there is one (1) one (1). Thus, 1011.

111021 - third number in the series. This describes the second number series ("1011") -- first digit is "1", which means that there is one (1) one (1); second digit is "0", which means that there is one (1) zero (0); and third & fourth digits are both "1", which means that there are two (2) ones (1). Thus, 111021.

31101211 - fourth number in the series. This describes the third number series ("111021") -- first, second, & third digits are all "1", which means that there are three (3) ones (1); fourth digit is "0", which means that there is one (1) zero (0); fifth digit is "2", which means that there is one (1) two (2); and sixth digit is "1", which means that there is one (1) one (1). Thus, 31101211.

Since you've noticed that we are only describing the preceding number series, then the last number that will be described is "31101211" -- first digit is "3", which means that there is one (1) three (3); second & third digits are "1", which means that there are two (2) ones (1); fourth digit is "0", which means that there is one (1) zero (0); fifth digit is "1", which means that there is one (1) one (1); sixth digit is "2", which means that there is one (1) two (2); and the last two digits are "1", which means that there are two (2) ones (1). Thus, 132110111221.

01

1011

111021

31101211

3131012121

132110111221

The first line is read in the text form to give u the next number.

e.g

01: It means u have one zero and one one. Hence it gives the next sequence number i.e (1011). Now if u read the number which u have received in similar form, it will give u the third number.

Who cares!?

31156721

this is my answer, no one can tell me this is wrong.

i don't care what is your answer.

01

1011

11021

31101211

1311012111??

it doesn't make any sense and it doesn't have a sequence

132110111221

10101010101