120331231001220 has 96 divisors (see below), whose sum is σ = 338836971916800. Its totient is φ = 31906865396224.

The previous prime is 120331231001173. The next prime is 120331231001239. The reversal of 120331231001220 is 22100132133021.

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 31 ways as a sum of consecutive naturals, for example, 3510766 + ... + 15905594.

It is an arithmetic number, because the mean of its divisors is an integer number (3529551790800).

Almost surely, 2^{120331231001220} is an apocalyptic number.

120331231001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120331231001220 is an abundant number, since it is smaller than the sum of its proper divisors (218505740915580).

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

120331231001220 is a wasteful number, since it uses less digits than its factorization.

120331231001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395757 (or 12395755 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120331231001220 its reverse (22100132133021), we get a palindrome (142431363134241).

The spelling of 120331231001220 in words is "one hundred twenty trillion, three hundred thirty-one billion, two hundred thirty-one million, one thousand, two hundred twenty".