104131212220 has 48 divisors (see below), whose sum is σ = 255015230400. Its totient is φ = 35702127552.

The previous prime is 104131212197. The next prime is 104131212247. The reversal of 104131212220 is 22212131401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7582879 + ... + 7596598.

It is an arithmetic number, because the mean of its divisors is an integer number (5312817300).

Almost surely, 2^104131212220 is an apocalyptic number.

104131212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104131212220 is an abundant number, since it is smaller than the sum of its proper divisors (150884018180).

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

104131212220 is a wasteful number, since it uses less digits than its factorization.

104131212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15179507 (or 15179491 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 104131212220 its reverse (22212131401), we get a palindrome (126343343621).

The spelling of 104131212220 in words is "one hundred four billion, one hundred thirty-one million, two hundred twelve thousand, two hundred twenty".