312222111320444 has 48 divisors (see below), whose sum is σ = 619418062569600. Its totient is φ = 136511542800576.

The previous prime is 312222111320443. The next prime is 312222111320453. The reversal of 312222111320444 is 444023111222213.

It is a self number, because there is not a number n which added to its sum of digits gives 312222111320444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312222111320443) 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, 12719267 + ... + 28039685.

It is an arithmetic number, because the mean of its divisors is an integer number (12904542970200).

Almost surely, 2^{312222111320444} is an apocalyptic number.

It is an amenable number.

312222111320444 is a deficient number, since it is larger than the sum of its proper divisors (307195951249156).

312222111320444 is a wasteful number, since it uses less digits than its factorization.

312222111320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341082 (or 15341080 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 312222111320444 its reverse (444023111222213), we get a palindrome (756245222542657).

The spelling of 312222111320444 in words is "three hundred twelve trillion, two hundred twenty-two billion, one hundred eleven million, three hundred twenty thousand, four hundred forty-four".