200121022122 has 64 divisors (see below), whose sum is σ = 460613468160. Its totient is φ = 56778980544.

The previous prime is 200121022117. The next prime is 200121022139. The reversal of 200121022122 is 221220121002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6225463 + ... + 6257525.

It is an arithmetic number, because the mean of its divisors is an integer number (7197085440).

Almost surely, 2^200121022122 is an apocalyptic number.

200121022122 is an abundant number, since it is smaller than the sum of its proper divisors (260492446038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200121022122 is a wasteful number, since it uses less digits than its factorization.

200121022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33107.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200121022122 its reverse (221220121002), we get a palindrome (421341143124).

The spelling of 200121022122 in words is "two hundred billion, one hundred twenty-one million, twenty-two thousand, one hundred twenty-two".