22123530445 has 8 divisors (see below), whose sum is σ = 26683000344. Its totient is φ = 17608981824.

The previous prime is 22123530439. The next prime is 22123530493. The reversal of 22123530445 is 54403532122.

It can be written as a sum of positive squares in 4 ways, for example, as 6631496356 + 15492034089 = 81434^2 + 124467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22123530445 - 2³ = 22123530437 is a prime.

It is a Duffinian number.

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, 11229234 + ... + 11231203.

It is an arithmetic number, because the mean of its divisors is an integer number (3335375043).

Almost surely, 2^22123530445 is an apocalyptic number.

It is an amenable number.

22123530445 is a deficient number, since it is larger than the sum of its proper divisors (4559469899).

22123530445 is a wasteful number, since it uses less digits than its factorization.

22123530445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22460639.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 22123530445 in words is "twenty-two billion, one hundred twenty-three million, five hundred thirty thousand, four hundred forty-five".