13220112120 has 32 divisors (see below), whose sum is σ = 39660336720. Its totient is φ = 3525363200.

The previous prime is 13220112083. The next prime is 13220112127. The reversal of 13220112120 is 2121102231.

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 13220112120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220112127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55083681 + ... + 55083920.

Almost surely, 2^13220112120 is an apocalyptic number.

13220112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220112120 is an abundant number, since it is smaller than the sum of its proper divisors (26440224600).

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

13220112120 is a wasteful number, since it uses less digits than its factorization.

13220112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110167615 (or 110167611 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13220112120 its reverse (2121102231), we get a palindrome (15341214351).

The spelling of 13220112120 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, one hundred twenty".