312112202211212 has 12 divisors (see below), whose sum is σ = 588211458013536. Its totient is φ = 144051785635920.

The previous prime is 312112202211181. The next prime is 312112202211221. The reversal of 312112202211212 is 212112202211213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3001078867364 + ... + 3001078867467.

It is an arithmetic number, because the mean of its divisors is an integer number (49017621501128).

Almost surely, 2^{312112202211212} is an apocalyptic number.

It is an amenable number.

312112202211212 is a deficient number, since it is larger than the sum of its proper divisors (276099255802324).

312112202211212 is a wasteful number, since it uses less digits than its factorization.

312112202211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002157734848 (or 6002157734846 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 312112202211212 its reverse (212112202211213), we get a palindrome (524224404422425).

Subtracting from 312112202211212 its reverse (212112202211213), we obtain a palindrome (99999999999999).

The spelling of 312112202211212 in words is "three hundred twelve trillion, one hundred twelve billion, two hundred two million, two hundred eleven thousand, two hundred twelve".