331220211331332 has 48 divisors (see below), whose sum is σ = 797812181913600. Its totient is φ = 106840613131680.

The previous prime is 331220211331319. The next prime is 331220211331337. The reversal of 331220211331332 is 233133112022133.

It is a super-3 number, since 3×331220211331332³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331220211331332.

It is not an unprimeable number, because it can be changed into a prime (331220211331337) by changing a digit.

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, 10607982 + ... + 27838277.

It is an arithmetic number, because the mean of its divisors is an integer number (16621087123200).

Almost surely, 2^{331220211331332} is an apocalyptic number.

It is an amenable number.

331220211331332 is an abundant number, since it is smaller than the sum of its proper divisors (466591970582268).

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

331220211331332 is a wasteful number, since it uses less digits than its factorization.

331220211331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38469456 (or 38469454 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 331220211331332 its reverse (233133112022133), we get a palindrome (564353323353465).

The spelling of 331220211331332 in words is "three hundred thirty-one trillion, two hundred twenty billion, two hundred eleven million, three hundred thirty-one thousand, three hundred thirty-two".