312222112203 has 16 divisors (see below), whose sum is σ = 419795890560. Its totient is φ = 206403971904.

The previous prime is 312222112177. The next prime is 312222112211. The reversal of 312222112203 is 302211222213.

312222112203 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 312222112203 - 2¹⁶ = 312222046667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312222112203.

It is not an unprimeable number, because it can be changed into a prime (312222112253) 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, 504018 + ... + 937271.

It is an arithmetic number, because the mean of its divisors is an integer number (26237243160).

Almost surely, 2^312222112203 is an apocalyptic number.

312222112203 is a deficient number, since it is larger than the sum of its proper divisors (107573778357).

312222112203 is a wasteful number, since it uses less digits than its factorization.

312222112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441898.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 312222112203 its reverse (302211222213), we get a palindrome (614433334416).

The spelling of 312222112203 in words is "three hundred twelve billion, two hundred twenty-two million, one hundred twelve thousand, two hundred three".