331213301220 has 96 divisors (see below), whose sum is σ = 929024127360. Its totient is φ = 88168780800.

The previous prime is 331213301201. The next prime is 331213301267. The reversal of 331213301220 is 22103312133.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138639786 + ... + 138642174.

It is an arithmetic number, because the mean of its divisors is an integer number (9677334660).

Almost surely, 2^331213301220 is an apocalyptic number.

331213301220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331213301220 is an abundant number, since it is smaller than the sum of its proper divisors (597810826140).

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

331213301220 is a wasteful number, since it uses less digits than its factorization.

331213301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485 (or 5483 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 331213301220 its reverse (22103312133), we get a palindrome (353316613353).

The spelling of 331213301220 in words is "three hundred thirty-one billion, two hundred thirteen million, three hundred one thousand, two hundred twenty".