331121212220232 has 96 divisors (see below), whose sum is σ = 1085187166128000. Its totient is φ = 89040998241792.

The previous prime is 331121212220219. The next prime is 331121212220269. The reversal of 331121212220232 is 232022212121133.

331121212220232 is a `hidden beast` number, since 3 + 311 + 2 + 121 + 2 + 220 + 2 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 331121212220196 and 331121212220205.

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 23 ways as a sum of consecutive naturals, for example, 19323124732 + ... + 19323141867.

It is an arithmetic number, because the mean of its divisors is an integer number (11304032980500).

Almost surely, 2^{331121212220232} is an apocalyptic number.

It is an amenable number.

331121212220232 is an abundant number, since it is smaller than the sum of its proper divisors (754065953907768).

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

331121212220232 is a wasteful number, since it uses less digits than its factorization.

331121212220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38646266635 (or 38646266628 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 331121212220232 its reverse (232022212121133), we get a palindrome (563143424341365).

Subtracting from 331121212220232 its reverse (232022212121133), we obtain a palindrome (99099000099099).

The spelling of 331121212220232 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, two hundred thirty-two".