312232011212 has 24 divisors (see below), whose sum is σ = 627451890240. Its totient is φ = 134453975760.

The previous prime is 312232011211. The next prime is 312232011229. The reversal of 312232011212 is 212110232213.

It is not an unprimeable number, because it can be changed into a prime (312232011211) by changing a digit.

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, 186740798 + ... + 186742469.

It is an arithmetic number, because the mean of its divisors is an integer number (26143828760).

Almost surely, 2^312232011212 is an apocalyptic number.

It is an amenable number.

312232011212 is an abundant number, since it is smaller than the sum of its proper divisors (315219879028).

312232011212 is a wasteful number, since it uses less digits than its factorization.

312232011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373483301 (or 373483299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312232011212 its reverse (212110232213), we get a palindrome (524342243425).

The spelling of 312232011212 in words is "three hundred twelve billion, two hundred thirty-two million, eleven thousand, two hundred twelve".