212331211331312 has 20 divisors (see below), whose sum is σ = 411393687630720. Its totient is φ = 106165098394368.

The previous prime is 212331211331273. The next prime is 212331211331353. The reversal of 212331211331312 is 213133112133212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28239737 + ... + 34959192.

It is an arithmetic number, because the mean of its divisors is an integer number (20569684381536).

Almost surely, 2^{212331211331312} is an apocalyptic number.

It is an amenable number.

212331211331312 is a deficient number, since it is larger than the sum of its proper divisors (199062476299408).

212331211331312 is a wasteful number, since it uses less digits than its factorization.

212331211331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63408920 (or 63408914 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

Adding to 212331211331312 its reverse (213133112133212), we get a palindrome (425464323464524).

The spelling of 212331211331312 in words is "two hundred twelve trillion, three hundred thirty-one billion, two hundred eleven million, three hundred thirty-one thousand, three hundred twelve".