212120331200012 has 48 divisors (see below), whose sum is σ = 380914032089472. Its totient is φ = 103323974336640.

The previous prime is 212120331199957. The next prime is 212120331200039. The reversal of 212120331200012 is 210002133021212.

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 15 ways as a sum of consecutive naturals, for example, 108260687 + ... + 110202617.

It is an arithmetic number, because the mean of its divisors is an integer number (7935709001864).

Almost surely, 2^{212120331200012} is an apocalyptic number.

It is an amenable number.

212120331200012 is a deficient number, since it is larger than the sum of its proper divisors (168793700889460).

212120331200012 is a wasteful number, since it uses less digits than its factorization.

212120331200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946598 (or 1946596 counting only the distinct ones).

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

Adding to 212120331200012 its reverse (210002133021212), we get a palindrome (422122464221224).

The spelling of 212120331200012 in words is "two hundred twelve trillion, one hundred twenty billion, three hundred thirty-one million, two hundred thousand, twelve".