312222304120 has 32 divisors (see below), whose sum is σ = 708717010320. Its totient is φ = 123783708160.

The previous prime is 312222304117. The next prime is 312222304133. The reversal of 312222304120 is 21403222213.

It is a junction number, because it is equal to n+sod(n) for n = 312222304091 and 312222304100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34533346 + ... + 34542385.

Almost surely, 2^312222304120 is an apocalyptic number.

It is an amenable number.

312222304120 is an abundant number, since it is smaller than the sum of its proper divisors (396494706200).

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

312222304120 is a wasteful number, since it uses less digits than its factorization.

312222304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69075855 (or 69075851 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 312222304120 its reverse (21403222213), we get a palindrome (333625526333).

The spelling of 312222304120 in words is "three hundred twelve billion, two hundred twenty-two million, three hundred four thousand, one hundred twenty".