23221112515315 has 24 divisors (see below), whose sum is σ = 32916770158608. Its totient is φ = 15588998605440.

The previous prime is 23221112515303. The next prime is 23221112515319. The reversal of 23221112515315 is 51351521112232.

It is not a de Polignac number, because 23221112515315 - 2¹¹ = 23221112513267 is a prime.

It is a super-2 number, since 2×23221112515315² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221112515319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1249109184 + ... + 1249127773.

It is an arithmetic number, because the mean of its divisors is an integer number (1371532089942).

Almost surely, 2^{23221112515315} is an apocalyptic number.

23221112515315 is a deficient number, since it is larger than the sum of its proper divisors (9695657643293).

23221112515315 is a wasteful number, since it uses less digits than its factorization.

23221112515315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498236999 (or 2498236986 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

Adding to 23221112515315 its reverse (51351521112232), we get a palindrome (74572633627547).

The spelling of 23221112515315 in words is "twenty-three trillion, two hundred twenty-one billion, one hundred twelve million, five hundred fifteen thousand, three hundred fifteen".