22022012020 has 12 divisors (see below), whose sum is σ = 46246225284. Its totient is φ = 8808804800.

The previous prime is 22022012017. The next prime is 22022012057. The reversal of 22022012020 is 2021022022.

It can be written as a sum of positive squares in 2 ways, for example, as 5808573796 + 16213438224 = 76214^2 + 127332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550550281 + ... + 550550320.

It is an arithmetic number, because the mean of its divisors is an integer number (3853852107).

Almost surely, 2^22022012020 is an apocalyptic number.

22022012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022012020 is an abundant number, since it is smaller than the sum of its proper divisors (24224213264).

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

22022012020 is a wasteful number, since it uses less digits than its factorization.

22022012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101100610 (or 1101100608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22022012020 its reverse (2021022022), we get a palindrome (24043034042).

The spelling of 22022012020 in words is "twenty-two billion, twenty-two million, twelve thousand, twenty".