22951223999 has 16 divisors (see below), whose sum is σ = 25100188416. Its totient is φ = 20812756800.

The previous prime is 22951223989. The next prime is 22951224007. The reversal of 22951223999 is 99932215922.

It is a de Polignac number, because none of the positive numbers 2^k-22951223999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22951223999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22951223959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10738859 + ... + 10740995.

It is an arithmetic number, because the mean of its divisors is an integer number (1568761776).

Almost surely, 2^22951223999 is an apocalyptic number.

22951223999 is a deficient number, since it is larger than the sum of its proper divisors (2148964417).

22951223999 is a wasteful number, since it uses less digits than its factorization.

22951223999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126.

The product of its digits is 1574640, while the sum is 53.

The spelling of 22951223999 in words is "twenty-two billion, nine hundred fifty-one million, two hundred twenty-three thousand, nine hundred ninety-nine".