312212122312 has 16 divisors (see below), whose sum is σ = 585403660800. Its totient is φ = 156104479440.

The previous prime is 312212122267. The next prime is 312212122331. The reversal of 312212122312 is 213221212213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414489 + ... + 1620247.

It is an arithmetic number, because the mean of its divisors is an integer number (36587728800).

Almost surely, 2^312212122312 is an apocalyptic number.

It is an amenable number.

312212122312 is a deficient number, since it is larger than the sum of its proper divisors (273191538488).

312212122312 is a wasteful number, since it uses less digits than its factorization.

312212122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395436 (or 395432 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 312212122312 its reverse (213221212213), we get a palindrome (525433334525).

The spelling of 312212122312 in words is "three hundred twelve billion, two hundred twelve million, one hundred twenty-two thousand, three hundred twelve".