22022606420 has 24 divisors (see below), whose sum is σ = 46881003624. Its totient is φ = 8688370176.

The previous prime is 22022606413. The next prime is 22022606521. The reversal of 22022606420 is 2460622022.

It can be written as a sum of positive squares in 4 ways, for example, as 1096669456 + 20925936964 = 33116^2 + 144658^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22022606420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7540529 + ... + 7543448.

It is an arithmetic number, because the mean of its divisors is an integer number (1953375151).

Almost surely, 2^22022606420 is an apocalyptic number.

22022606420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022606420 is an abundant number, since it is smaller than the sum of its proper divisors (24858397204).

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

22022606420 is a wasteful number, since it uses less digits than its factorization.

22022606420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15084059 (or 15084057 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 22022606420 in words is "twenty-two billion, twenty-two million, six hundred six thousand, four hundred twenty".