22123315264 has 56 divisors (see below), whose sum is σ = 44458356600. Its totient is φ = 10921574400.

The previous prime is 22123315259. The next prime is 22123315301. The reversal of 22123315264 is 46251332122.

It can be written as a sum of positive squares in 4 ways, for example, as 4749966400 + 17373348864 = 68920^2 + 131808^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4605664 + ... + 4610464.

It is an arithmetic number, because the mean of its divisors is an integer number (793899225).

Almost surely, 2^22123315264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22123315264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22229178300).

22123315264 is an abundant number, since it is smaller than the sum of its proper divisors (22335041336).

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

22123315264 is an equidigital number, since it uses as much as digits as its factorization.

22123315264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711 (or 5701 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

Adding to 22123315264 its reverse (46251332122), we get a palindrome (68374647386).

The spelling of 22123315264 in words is "twenty-two billion, one hundred twenty-three million, three hundred fifteen thousand, two hundred sixty-four".