331000020233220 has 72 divisors (see below), whose sum is σ = 1003576392737856. Its totient is φ = 81476928054912.

The previous prime is 331000020233209. The next prime is 331000020233221. The reversal of 331000020233220 is 22332020000133.

It is a super-2 number, since 2×331000020233220² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331000020233221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16321489872 + ... + 16321510151.

It is an arithmetic number, because the mean of its divisors is an integer number (13938561010248).

Almost surely, 2^{331000020233220} is an apocalyptic number.

331000020233220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331000020233220 is an abundant number, since it is smaller than the sum of its proper divisors (672576372504636).

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

331000020233220 is a wasteful number, since it uses less digits than its factorization.

331000020233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32643000061 (or 32643000046 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 331000020233220 its reverse (22332020000133), we get a palindrome (353332040233353).

The spelling of 331000020233220 in words is "three hundred thirty-one trillion, twenty million, two hundred thirty-three thousand, two hundred twenty".