If you put one dollar a day in the bank and earn 20 percent interest per month, how much would you have in 100 years

Answer 1

Very silly question, but ....

amount = 1(1.2)^1200
= 1.041 x 10^95

that is 1041000000....0000 for 96 digits

(we don't even have "names" for a number like this.
There is nothing measureable requiring that number.
The number of atoms in our visible universe is estimated at 10^85 or so )

Answer 2

actually, since a googol is 10^100, this is just

10.41 microgoogols