13312100220 has 24 divisors (see below), whose sum is σ = 37273880784. Its totient is φ = 3549893376.

The previous prime is 13312100213. The next prime is 13312100279. The reversal of 13312100220 is 2200121331.

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 13312100220.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 110934109 + ... + 110934228.

It is an arithmetic number, because the mean of its divisors is an integer number (1553078366).

Almost surely, 2^13312100220 is an apocalyptic number.

13312100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312100220 is an abundant number, since it is smaller than the sum of its proper divisors (23961780564).

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

13312100220 is a wasteful number, since it uses less digits than its factorization.

13312100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221868349 (or 221868347 counting only the distinct ones).

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

Adding to 13312100220 its reverse (2200121331), we get a palindrome (15512221551).

The spelling of 13312100220 in words is "thirteen billion, three hundred twelve million, one hundred thousand, two hundred twenty".