312222203320 has 64 divisors (see below), whose sum is σ = 748387084320. Its totient is φ = 116821315584.

The previous prime is 312222203257. The next prime is 312222203323. The reversal of 312222203320 is 23302222213.

It is a junction number, because it is equal to n+sod(n) for n = 312222203291 and 312222203300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312222203323) 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, 1297597 + ... + 1519276.

Almost surely, 2^312222203320 is an apocalyptic number.

It is an amenable number.

312222203320 is an abundant number, since it is smaller than the sum of its proper divisors (436164881000).

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

312222203320 is a wasteful number, since it uses less digits than its factorization.

312222203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817064 (or 2817060 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 312222203320 its reverse (23302222213), we get a palindrome (335524425533).

The spelling of 312222203320 in words is "three hundred twelve billion, two hundred twenty-two million, two hundred three thousand, three hundred twenty".