122211111012 has 24 divisors (see below), whose sum is σ = 287824301856. Its totient is φ = 40356316608.

The previous prime is 122211110981. The next prime is 122211111019. The reversal of 122211111012 is 210111112221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122211110982 and 122211111000.

It is not an unprimeable number, because it can be changed into a prime (122211111019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47588713 + ... + 47591280.

It is an arithmetic number, because the mean of its divisors is an integer number (11992679244).

Almost surely, 2^122211111012 is an apocalyptic number.

122211111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122211111012 is an abundant number, since it is smaller than the sum of its proper divisors (165613190844).

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

122211111012 is a wasteful number, since it uses less digits than its factorization.

122211111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95180107 (or 95180105 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122211111012 its reverse (210111112221), we get a palindrome (332322223233).

The spelling of 122211111012 in words is "one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, twelve".