Help! I can't for the life of me figure out the name of the song with the lyrics of "in the year 2121"

In the Year 2525 (Exordium & Terminus) by Zager&Evans

In the year 2525

if man is still alive

if woman can survive

They may find

In the year 3535

Ain't gonna need to tell the truth, tell no lie

Everything you think, do and say

Is in the pill you took today

In the year 4545

You ain't gonna need your teeth, won't need your eyes

You won't find a thing to chew

Nobody's gonna look at you

In the year 5555

Your arms hangin' limp at your sides

Your legs got nothin' to do

Some machine's doin' that for you

In the year 6565

You won't need no husband, won't need no wife

You'll pick your son, pick your daughter too

From the bottom of a long glass tube

In the year 7510

If God's a-coming, He oughta make it by then

Maybe He'll look around Himself and say

"Guess it's time for the judgement day"

In the year 8510

God is gonna shake His mighty head

He'll either say "I'm pleased where man has been"

Or tear it down, and start again

In the year 9595

I'm kinda wonderin' if man is gonna be alive

He's taken everything this old earth can give

And he ain't put back nothing

Now it's been ten thousand years

Man has cried a billion tears

For what, he never knew

Now man's reign is through

But through eternal night

The twinkling of starlight

So very far away

Maybe it's only yesterday

Maybe you are thinking of the song "In The Year 2525" by Zager and Evans.