122102112010021 has 32 divisors (see below), whose sum is σ = 143886279398400. Its totient is φ = 102150816422400.

The previous prime is 122102112009959. The next prime is 122102112010049. The reversal of 122102112010021 is 120010211201221.

It is a cyclic number.

It is not a de Polignac number, because 122102112010021 - 2³³ = 122093522075429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122102112009977 and 122102112010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102112019021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272817601 + ... + 273264793.

It is an arithmetic number, because the mean of its divisors is an integer number (4496446231200).

Almost surely, 2^{122102112010021} is an apocalyptic number.

122102112010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122102112010021 is a deficient number, since it is larger than the sum of its proper divisors (21784167388379).

122102112010021 is a wasteful number, since it uses less digits than its factorization.

122102112010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453037.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122102112010021 its reverse (120010211201221), we get a palindrome (242112323211242).

The spelling of 122102112010021 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred twelve million, ten thousand, twenty-one".