22251161315 has 8 divisors (see below), whose sum is σ = 26703673440. Its totient is φ = 17799409152.

The previous prime is 22251161279. The next prime is 22251161321. The reversal of 22251161315 is 51316115222.

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 22251161315 - 2²² = 22246967011 is a prime.

It is a super-2 number, since 2×22251161315² (a number of 21 digits) contains 22 as substring.

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, 123455 + ... + 244424.

It is an arithmetic number, because the mean of its divisors is an integer number (3337959180).

Almost surely, 2^22251161315 is an apocalyptic number.

22251161315 is a deficient number, since it is larger than the sum of its proper divisors (4452512125).

22251161315 is a wasteful number, since it uses less digits than its factorization.

22251161315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379981.

The product of its digits is 3600, while the sum is 29.

Adding to 22251161315 its reverse (51316115222), we get a palindrome (73567276537).

The spelling of 22251161315 in words is "twenty-two billion, two hundred fifty-one million, one hundred sixty-one thousand, three hundred fifteen".