13220002020 has 48 divisors (see below), whose sum is σ = 38964219840. Its totient is φ = 3339789696.

The previous prime is 13220002007. The next prime is 13220002067. The reversal of 13220002020 is 2020002231.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13220001987 and 13220002005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5797107 + ... + 5799386.

It is an arithmetic number, because the mean of its divisors is an integer number (811754580).

Almost surely, 2^13220002020 is an apocalyptic number.

13220002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220002020 is an abundant number, since it is smaller than the sum of its proper divisors (25744217820).

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

13220002020 is a wasteful number, since it uses less digits than its factorization.

13220002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11596524 (or 11596522 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 13220002020 its reverse (2020002231), we get a palindrome (15240004251).

The spelling of 13220002020 in words is "thirteen billion, two hundred twenty million, two thousand, twenty".