13220112020 has 24 divisors (see below), whose sum is σ = 27828511200. Its totient is φ = 5275420832.

The previous prime is 13220111981. The next prime is 13220112023. The reversal of 13220112020 is 2021102231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13220111986 and 13220112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220112023) by changing a digit.

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, 780410 + ... + 797169.

It is an arithmetic number, because the mean of its divisors is an integer number (1159521300).

Almost surely, 2^13220112020 is an apocalyptic number.

13220112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220112020 is an abundant number, since it is smaller than the sum of its proper divisors (14608399180).

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

13220112020 is a wasteful number, since it uses less digits than its factorization.

13220112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578007 (or 1578005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13220112020 its reverse (2021102231), we get a palindrome (15241214251).

The spelling of 13220112020 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, twenty".