212120313313212 has 72 divisors (see below), whose sum is σ = 542346936010880. Its totient is φ = 69897669409440.

The previous prime is 212120313313201. The next prime is 212120313313229. The reversal of 212120313313212 is 212313313021212.

212120313313212 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 2 + 0 + 3 + 1 + 331 + 321 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47975662 + ... + 52210197.

Almost surely, 2^{212120313313212} is an apocalyptic number.

It is an amenable number.

212120313313212 is an abundant number, since it is smaller than the sum of its proper divisors (330226622697668).

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

212120313313212 is a wasteful number, since it uses less digits than its factorization.

212120313313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100186543 (or 100186538 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 212120313313212 its reverse (212313313021212), we get a palindrome (424433626334424).

The spelling of 212120313313212 in words is "two hundred twelve trillion, one hundred twenty billion, three hundred thirteen million, three hundred thirteen thousand, two hundred twelve".