22157200015 has 8 divisors (see below), whose sum is σ = 26639677008. Its totient is φ = 17691735360.

The previous prime is 22157199979. The next prime is 22157200031. The reversal of 22157200015 is 51000275122.

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

It is not a de Polignac number, because 22157200015 - 2³¹ = 20009716367 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, 4250217 + ... + 4255426.

It is an arithmetic number, because the mean of its divisors is an integer number (3329959626).

Almost surely, 2^22157200015 is an apocalyptic number.

22157200015 is a deficient number, since it is larger than the sum of its proper divisors (4482476993).

22157200015 is an equidigital number, since it uses as much as digits as its factorization.

22157200015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506169.

The product of its (nonzero) digits is 1400, while the sum is 25.

Adding to 22157200015 its reverse (51000275122), we get a palindrome (73157475137).

The spelling of 22157200015 in words is "twenty-two billion, one hundred fifty-seven million, two hundred thousand, fifteen".