22022603605 has 4 divisors (see below), whose sum is σ = 26427124332. Its totient is φ = 17618082880.

The previous prime is 22022603599. The next prime is 22022603609. The reversal of 22022603605 is 50630622022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10078955236 + 11943648369 = 100394^2 + 109287^2 .

It is not a de Polignac number, because 22022603605 - 2³ = 22022603597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022603609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202260356 + ... + 2202260365.

It is an arithmetic number, because the mean of its divisors is an integer number (6606781083).

Almost surely, 2^22022603605 is an apocalyptic number.

It is an amenable number.

22022603605 is a deficient number, since it is larger than the sum of its proper divisors (4404520727).

22022603605 is an equidigital number, since it uses as much as digits as its factorization.

22022603605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404520726.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 22022603605 in words is "twenty-two billion, twenty-two million, six hundred three thousand, six hundred five".