122111022210 has 64 divisors (see below), whose sum is σ = 295365007872. Its totient is φ = 32307803136.

The previous prime is 122111022179. The next prime is 122111022329. The reversal of 122111022210 is 12220111221.

It is a super-2 number, since 2×122111022210² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122111022210.

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, 8776119 + ... + 8790021.

It is an arithmetic number, because the mean of its divisors is an integer number (4615078248).

Almost surely, 2^122111022210 is an apocalyptic number.

122111022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122111022210 is an abundant number, since it is smaller than the sum of its proper divisors (173253985662).

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

122111022210 is a wasteful number, since it uses less digits than its factorization.

122111022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16187.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122111022210 its reverse (12220111221), we get a palindrome (134331133431).

The spelling of 122111022210 in words is "one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, two hundred ten".