13220232120 has 96 divisors (see below), whose sum is σ = 42981887520. Its totient is φ = 3524071680.

The previous prime is 13220232119. The next prime is 13220232133. The reversal of 13220232120 is 2123202231.

13220232120 is a `hidden beast` number, since 1 + 322 + 0 + 2 + 321 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13220232093 and 13220232102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1293430 + ... + 1303610.

It is an arithmetic number, because the mean of its divisors is an integer number (447727995).

Almost surely, 2^13220232120 is an apocalyptic number.

13220232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220232120 is an abundant number, since it is smaller than the sum of its proper divisors (29761655400).

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

13220232120 is a wasteful number, since it uses less digits than its factorization.

13220232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13805 (or 13798 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13220232120 its reverse (2123202231), we get a palindrome (15343434351).

The spelling of 13220232120 in words is "thirteen billion, two hundred twenty million, two hundred thirty-two thousand, one hundred twenty".