312333222012 has 48 divisors (see below), whose sum is σ = 849886329600. Its totient is φ = 89238062256.

The previous prime is 312333222011. The next prime is 312333222023. The reversal of 312333222012 is 210222333213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312333222011) 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, 37937238 + ... + 37945469.

It is an arithmetic number, because the mean of its divisors is an integer number (17705965200).

Almost surely, 2^312333222012 is an apocalyptic number.

It is an amenable number.

312333222012 is an abundant number, since it is smaller than the sum of its proper divisors (537553107588).

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

312333222012 is a wasteful number, since it uses less digits than its factorization.

312333222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75882735 (or 75882719 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 312333222012 its reverse (210222333213), we get a palindrome (522555555225).

The spelling of 312333222012 in words is "three hundred twelve billion, three hundred thirty-three million, two hundred twenty-two thousand, twelve".