202100000021122 has 32 divisors (see below), whose sum is σ = 348988227114240. Its totient is φ = 85981522640640.

The previous prime is 202100000021057. The next prime is 202100000021141. The reversal of 202100000021122 is 221120000001202.

It is a happy number.

It is a super-2 number, since 2×202100000021122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502086579 + ... + 502488937.

It is an arithmetic number, because the mean of its divisors is an integer number (10905882097320).

Almost surely, 2^{202100000021122} is an apocalyptic number.

202100000021122 is a deficient number, since it is larger than the sum of its proper divisors (146888227093118).

202100000021122 is a wasteful number, since it uses less digits than its factorization.

202100000021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664386.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202100000021122 its reverse (221120000001202), we get a palindrome (423220000022324).

The spelling of 202100000021122 in words is "two hundred two trillion, one hundred billion, twenty-one thousand, one hundred twenty-two".