122131112312 has 64 divisors (see below), whose sum is σ = 251114722560. Its totient is φ = 55225465600.

The previous prime is 122131112293. The next prime is 122131112317. The reversal of 122131112312 is 213211131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131112317) 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, 31225637 + ... + 31229547.

It is an arithmetic number, because the mean of its divisors is an integer number (3923667540).

Almost surely, 2^122131112312 is an apocalyptic number.

It is an amenable number.

122131112312 is an abundant number, since it is smaller than the sum of its proper divisors (128983610248).

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

122131112312 is a wasteful number, since it uses less digits than its factorization.

122131112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684 (or 5680 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 122131112312 its reverse (213211131221), we get a palindrome (335342243533).

The spelling of 122131112312 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred twelve thousand, three hundred twelve".