312544323222 has 16 divisors (see below), whose sum is σ = 625094580672. Its totient is φ = 104180452040.

The previous prime is 312544323209. The next prime is 312544323239. The reversal of 312544323222 is 222323445213.

It is a super-2 number, since 2×312544323222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741697 + ... + 1084067.

It is an arithmetic number, because the mean of its divisors is an integer number (39068411292).

Almost surely, 2^312544323222 is an apocalyptic number.

312544323222 is an abundant number, since it is smaller than the sum of its proper divisors (312550257450).

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

312544323222 is a wasteful number, since it uses less digits than its factorization.

312544323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494523.

The product of its digits is 69120, while the sum is 33.

Adding to 312544323222 its reverse (222323445213), we get a palindrome (534867768435).

The spelling of 312544323222 in words is "three hundred twelve billion, five hundred forty-four million, three hundred twenty-three thousand, two hundred twenty-two".