331132201212 has 12 divisors (see below), whose sum is σ = 772641802856. Its totient is φ = 110377400400.

The previous prime is 331132201199. The next prime is 331132201217. The reversal of 331132201212 is 212102231133.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331132201217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13797175039 + ... + 13797175062.

Almost surely, 2^331132201212 is an apocalyptic number.

It is an amenable number.

331132201212 is an abundant number, since it is smaller than the sum of its proper divisors (441509601644).

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

331132201212 is a wasteful number, since it uses less digits than its factorization.

331132201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27594350108 (or 27594350106 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331132201212 its reverse (212102231133), we get a palindrome (543234432345).

The spelling of 331132201212 in words is "three hundred thirty-one billion, one hundred thirty-two million, two hundred one thousand, two hundred twelve".