331331330220 has 192 divisors, whose sum is σ = 1028887114752. Its totient is φ = 78998400000.

The previous prime is 331331330203. The next prime is 331331330221. The reversal of 331331330220 is 22033133133.

It is not an unprimeable number, because it can be changed into a prime (331331330221) 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 63 ways as a sum of consecutive naturals, for example, 10049202 + ... + 10082118.

It is an arithmetic number, because the mean of its divisors is an integer number (5358787056).

Almost surely, 2^331331330220 is an apocalyptic number.

331331330220 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 331331330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514443557376).

331331330220 is an abundant number, since it is smaller than the sum of its proper divisors (697555784532).

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

331331330220 is a wasteful number, since it uses less digits than its factorization.

331331330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33192 (or 33190 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 331331330220 its reverse (22033133133), we get a palindrome (353364463353).

The spelling of 331331330220 in words is "three hundred thirty-one billion, three hundred thirty-one million, three hundred thirty thousand, two hundred twenty".