312233212 has 12 divisors (see below), whose sum is σ = 546654640. Its totient is φ = 156046176.

The previous prime is 312233179. The next prime is 312233219. The reversal of 312233212 is 212332213.

It is a self number, because there is not a number n which added to its sum of digits gives 312233212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312233219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6912 + ... + 25927.

Almost surely, 2^312233212 is an apocalyptic number.

It is an amenable number.

312233212 is a deficient number, since it is larger than the sum of its proper divisors (234421428).

312233212 is a wasteful number, since it uses less digits than its factorization.

312233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35220 (or 35218 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 312233212 is about 17670.1220142929. The cubic root of 312233212 is about 678.4112360885.

Adding to 312233212 its reverse (212332213), we get a palindrome (524565425).

Subtracting from 312233212 its reverse (212332213), we obtain a palindrome (99900999).

It can be divided in two parts, 312233 and 212, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 312233212 in words is "three hundred twelve million, two hundred thirty-three thousand, two hundred twelve".