102021112122210 has 32 divisors (see below), whose sum is σ = 272056298993280. Its totient is φ = 27205629899184.

The previous prime is 102021112122187. The next prime is 102021112122269. The reversal of 102021112122210 is 12221211120201.

102021112122210 is a `hidden beast` number, since 1 + 0 + 20 + 211 + 1 + 212 + 221 + 0 = 666.

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

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, 188927985142 + ... + 188927985681.

It is an arithmetic number, because the mean of its divisors is an integer number (8501759343540).

Almost surely, 2^{102021112122210} is an apocalyptic number.

102021112122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021112122210 is an abundant number, since it is smaller than the sum of its proper divisors (170035186871070).

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

102021112122210 is a wasteful number, since it uses less digits than its factorization.

102021112122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377855970839 (or 377855970833 counting only the distinct ones).

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

Adding to 102021112122210 its reverse (12221211120201), we get a palindrome (114242323242411).

The spelling of 102021112122210 in words is "one hundred two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred ten".