102202112112021 has 12 divisors (see below), whose sum is σ = 154043763183648. Its totient is φ = 65172361346664.

The previous prime is 102202112112017. The next prime is 102202112112031. The reversal of 102202112112021 is 120211211202201.

102202112112021 is a `hidden beast` number, since 1 + 0 + 220 + 211 + 211 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 102202112112021 - 2² = 102202112112017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102202112111985 and 102202112112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202112112031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246865004895 + ... + 246865005308.

It is an arithmetic number, because the mean of its divisors is an integer number (12836980265304).

Almost surely, 2^{102202112112021} is an apocalyptic number.

It is an amenable number.

102202112112021 is a deficient number, since it is larger than the sum of its proper divisors (51841651071627).

102202112112021 is a wasteful number, since it uses less digits than its factorization.

102202112112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493730010232 (or 493730010229 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102202112112021 its reverse (120211211202201), we get a palindrome (222413323314222).

The spelling of 102202112112021 in words is "one hundred two trillion, two hundred two billion, one hundred twelve million, one hundred twelve thousand, twenty-one".