102111012022122 has 24 divisors (see below), whose sum is σ = 232884764261760. Its totient is φ = 32245582743720.

The previous prime is 102111012022081. The next prime is 102111012022169. The reversal of 102111012022122 is 221220210111201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102111012022095 and 102111012022104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149285104954 + ... + 149285105637.

It is an arithmetic number, because the mean of its divisors is an integer number (9703531844240).

Almost surely, 2^{102111012022122} is an apocalyptic number.

102111012022122 is an abundant number, since it is smaller than the sum of its proper divisors (130773752239638).

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

102111012022122 is a wasteful number, since it uses less digits than its factorization.

102111012022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298570210618 (or 298570210615 counting only the distinct ones).

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

Adding to 102111012022122 its reverse (221220210111201), we get a palindrome (323331222133323).

The spelling of 102111012022122 in words is "one hundred two trillion, one hundred eleven billion, twelve million, twenty-two thousand, one hundred twenty-two".