22002013020 has 96 divisors (see below), whose sum is σ = 70247193408. Its totient is φ = 5097295872.

The previous prime is 22002013009. The next prime is 22002013021. The reversal of 22002013020 is 2031020022.

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 = 22002012987 and 22002013005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002013021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816379 + ... + 842898.

It is an arithmetic number, because the mean of its divisors is an integer number (731741598).

Almost surely, 2^22002013020 is an apocalyptic number.

22002013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002013020 is an abundant number, since it is smaller than the sum of its proper divisors (48245180388).

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

22002013020 is a wasteful number, since it uses less digits than its factorization.

22002013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659319 (or 1659317 counting only the distinct ones).

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

Adding to 22002013020 its reverse (2031020022), we get a palindrome (24033033042).

The spelling of 22002013020 in words is "twenty-two billion, two million, thirteen thousand, twenty".