22173215244 has 24 divisors (see below), whose sum is σ = 51814397040. Its totient is φ = 7380086784.

The previous prime is 22173215221. The next prime is 22173215249. The reversal of 22173215244 is 44251237122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22173215249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364709 + ... + 1380860.

It is an arithmetic number, because the mean of its divisors is an integer number (2158933210).

Almost surely, 2^22173215244 is an apocalyptic number.

It is an amenable number.

22173215244 is an abundant number, since it is smaller than the sum of its proper divisors (29641181796).

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

22173215244 is a wasteful number, since it uses less digits than its factorization.

22173215244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746249 (or 2746247 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The spelling of 22173215244 in words is "twenty-two billion, one hundred seventy-three million, two hundred fifteen thousand, two hundred forty-four".