202102111121122 has 64 divisors (see below), whose sum is σ = 324877209108480. Its totient is φ = 94059201808000.

The previous prime is 202102111121107. The next prime is 202102111121177. The reversal of 202102111121122 is 221121111201202.

It is a happy number.

It is a super-2 number, since 2×202102111121122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202102111121122.

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, 2956793247 + ... + 2956861597.

It is an arithmetic number, because the mean of its divisors is an integer number (5076206392320).

Almost surely, 2^{202102111121122} is an apocalyptic number.

202102111121122 is a deficient number, since it is larger than the sum of its proper divisors (122775097987358).

202102111121122 is a wasteful number, since it uses less digits than its factorization.

202102111121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72399.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202102111121122 its reverse (221121111201202), we get a palindrome (423223222322324).

The spelling of 202102111121122 in words is "two hundred two trillion, one hundred two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".