220131302100 has 36 divisors (see below), whose sum is σ = 636913234944. Its totient is φ = 58701680480.

The previous prime is 220131302093. The next prime is 220131302189. The reversal of 220131302100 is 1203131022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220131302100.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 366885204 + ... + 366885803.

It is an arithmetic number, because the mean of its divisors is an integer number (17692034304).

Almost surely, 2^220131302100 is an apocalyptic number.

220131302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220131302100 is an abundant number, since it is smaller than the sum of its proper divisors (416781932844).

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

220131302100 is a wasteful number, since it uses less digits than its factorization.

220131302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733771024 (or 733771017 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 220131302100 its reverse (1203131022), we get a palindrome (221334433122).

The spelling of 220131302100 in words is "two hundred twenty billion, one hundred thirty-one million, three hundred two thousand, one hundred".