122312012112 has 30 divisors (see below), whose sum is σ = 342303756522. Its totient is φ = 40770670656.

The previous prime is 122312012111. The next prime is 122312012129. The reversal of 122312012112 is 211210213221.

It can be written as a sum of positive squares in only one way, i.e., 120078882576 + 2233129536 = 346524^2 + 47256^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312012111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424694343 + ... + 424694630.

Almost surely, 2^122312012112 is an apocalyptic number.

122312012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122312012112 is an abundant number, since it is smaller than the sum of its proper divisors (219991744410).

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

122312012112 is a wasteful number, since it uses less digits than its factorization.

122312012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849388987 (or 849388978 counting only the distinct ones).

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

Adding to 122312012112 its reverse (211210213221), we get a palindrome (333522225333).

The spelling of 122312012112 in words is "one hundred twenty-two billion, three hundred twelve million, twelve thousand, one hundred twelve".