Final answer:
The exponent in 1010²⁰²⁰ is 2,020.
Step-by-step explanation:
The exponent in 1010²⁰²⁰ is 2,020.
When we have a number raised to an exponent, it means we multiply the number by itself the number of times indicated by the exponent.
In this case, we have 10 raised to the power of 10²⁰²⁰. This means we multiply 10 by itself 2,020 times, resulting in a very large number.