22500561223 has 24 divisors (see below), whose sum is σ = 27043800480. Its totient is φ = 18655640640.

The previous prime is 22500561169. The next prime is 22500561229. The reversal of 22500561223 is 32216500522.

It is not a de Polignac number, because 22500561223 - 2²⁵ = 22467006791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22500561191 and 22500561200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22500561229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123373 + ... + 245401.

It is an arithmetic number, because the mean of its divisors is an integer number (1126825020).

Almost surely, 2^22500561223 is an apocalyptic number.

22500561223 is a deficient number, since it is larger than the sum of its proper divisors (4543239257).

22500561223 is a wasteful number, since it uses less digits than its factorization.

22500561223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122167 (or 122160 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 22500561223 in words is "twenty-two billion, five hundred million, five hundred sixty-one thousand, two hundred twenty-three".