How many zeroes are there in a googolplex?

A googolplex is one followed by a googol zeroes. A googol is equal to 10^100, or 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.
A googolplex is defined as a one, followed by googol (10100) zeroes. Don't try to write this out.