122011220112 has 80 divisors (see below), whose sum is σ = 317419416000. Its totient is φ = 40384138752.

The previous prime is 122011220099. The next prime is 122011220113. The reversal of 122011220112 is 211022110221.

It is a junction number, because it is equal to n+sod(n) for n = 122011220091 and 122011220100.

It is not an unprimeable number, because it can be changed into a prime (122011220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6081714 + ... + 6101742.

It is an arithmetic number, because the mean of its divisors is an integer number (3967742700).

Almost surely, 2^122011220112 is an apocalyptic number.

122011220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122011220112 is an abundant number, since it is smaller than the sum of its proper divisors (195408195888).

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

122011220112 is a wasteful number, since it uses less digits than its factorization.

122011220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928 (or 20922 counting only the distinct ones).

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

Adding to 122011220112 its reverse (211022110221), we get a palindrome (333033330333).

The spelling of 122011220112 in words is "one hundred twenty-two billion, eleven million, two hundred twenty thousand, one hundred twelve".