331332212220 has 96 divisors (see below), whose sum is σ = 935833704960. Its totient is φ = 87585442560.

The previous prime is 331332212203. The next prime is 331332212231. The reversal of 331332212220 is 22212233133.

It is a congruent number.

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, 5482689 + ... + 5542791.

It is an arithmetic number, because the mean of its divisors is an integer number (9748267760).

Almost surely, 2^331332212220 is an apocalyptic number.

331332212220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331332212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467916852480).

331332212220 is an abundant number, since it is smaller than the sum of its proper divisors (604501492740).

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

331332212220 is a wasteful number, since it uses less digits than its factorization.

331332212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60915 (or 60913 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 331332212220 its reverse (22212233133), we get a palindrome (353544445353).

The spelling of 331332212220 in words is "three hundred thirty-one billion, three hundred thirty-two million, two hundred twelve thousand, two hundred twenty".