312012223202 has 32 divisors (see below), whose sum is σ = 508819449600. Its totient is φ = 143008942608.

The previous prime is 312012223189. The next prime is 312012223241. The reversal of 312012223202 is 202322210213.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717452 + ... + 1067127.

It is an arithmetic number, because the mean of its divisors is an integer number (15900607800).

Almost surely, 2^312012223202 is an apocalyptic number.

312012223202 is a deficient number, since it is larger than the sum of its proper divisors (196807226398).

312012223202 is a wasteful number, since it uses less digits than its factorization.

312012223202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784750.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 312012223202 its reverse (202322210213), we get a palindrome (514334433415).

The spelling of 312012223202 in words is "three hundred twelve billion, twelve million, two hundred twenty-three thousand, two hundred two".