211031401331212 has 24 divisors (see below), whose sum is σ = 460432148359680. Its totient is φ = 82220026492560.

The previous prime is 211031401331167. The next prime is 211031401331251. The reversal of 211031401331212 is 212133104130112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342583443412 + ... + 342583444027.

It is an arithmetic number, because the mean of its divisors is an integer number (19184672848320).

Almost surely, 2^{211031401331212} is an apocalyptic number.

211031401331212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211031401331212 is an abundant number, since it is smaller than the sum of its proper divisors (249400747028468).

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

211031401331212 is a wasteful number, since it uses less digits than its factorization.

211031401331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685166887461 (or 685166887459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 211031401331212 its reverse (212133104130112), we get a palindrome (423164505461324).

The spelling of 211031401331212 in words is "two hundred eleven trillion, thirty-one billion, four hundred one million, three hundred thirty-one thousand, two hundred twelve".