122112312 has 48 divisors (see below), whose sum is σ = 355125960. Its totient is φ = 34888896.

The previous prime is 122112311. The next prime is 122112349. The reversal of 122112312 is 213211221.

It is a super-2 number, since 2×122112312² = 29822833483970688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 122112291 and 122112300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50743 + ... + 53094.

Almost surely, 2^122112312 is an apocalyptic number.

122112312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122112312 is an abundant number, since it is smaller than the sum of its proper divisors (233013648).

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

122112312 is a wasteful number, since it uses less digits than its factorization.

122112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103860 (or 103849 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 122112312 is about 11050.4439729814. The cubic root of 122112312 is about 496.1197139930.

Adding to 122112312 its reverse (213211221), we get a palindrome (335323533).

The spelling of 122112312 in words is "one hundred twenty-two million, one hundred twelve thousand, three hundred twelve".