122131220112 has 60 divisors (see below), whose sum is σ = 372870320784. Its totient is φ = 37009460160.

The previous prime is 122131220083. The next prime is 122131220117. The reversal of 122131220112 is 211022131221.

122131220112 is a `hidden beast` number, since 1 + 221 + 312 + 20 + 112 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (122131220117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38549938 + ... + 38553105.

Almost surely, 2^122131220112 is an apocalyptic number.

122131220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122131220112 is an abundant number, since it is smaller than the sum of its proper divisors (250739100672).

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

122131220112 is a wasteful number, since it uses less digits than its factorization.

122131220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77103068 (or 77103059 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122131220112 its reverse (211022131221), we get a palindrome (333153351333).

It can be divided in two parts, 122131 and 220112, that added together give a palindrome (342243).

The spelling of 122131220112 in words is "one hundred twenty-two billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twelve".