122331312 has 30 divisors (see below), whose sum is σ = 342358172. Its totient is φ = 40777056.

The previous prime is 122331299. The next prime is 122331323. The reversal of 122331312 is 213133221.

122331312 is a `hidden beast` number, since 1 + 22 + 331 + 312 = 666.

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

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424618 + ... + 424905.

Almost surely, 2^122331312 is an apocalyptic number.

122331312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122331312 is an abundant number, since it is smaller than the sum of its proper divisors (220026860).

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

122331312 is a wasteful number, since it uses less digits than its factorization.

122331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849537 (or 849528 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 122331312 is about 11060.3486382663. The cubic root of 122331312 is about 496.4161223513.

Adding to 122331312 its reverse (213133221), we get a palindrome (335464533).

The spelling of 122331312 in words is "one hundred twenty-two million, three hundred thirty-one thousand, three hundred twelve".