I thought that I was good at Math

[Canyarion]

The Googol is actually less than the centillion. Look at it:
"100 centillion 1,000 followed by 100 groups of three zeros
One GOOGOL is a ONE followed by 100 zeroes."

Centillion is 130 times bigger. (1000+100*3=1300 zeroes)

Ofcourse the Googolplex is still the biggest one...