22315315 has 16 divisors (see below), whose sum is σ = 29304576. Its totient is φ = 16178400.

The previous prime is 22315303. The next prime is 22315327. The reversal of 22315315 is 51351322.

It is an interprime number because it is at equal distance from previous prime (22315303) and next prime (22315327).

It is not a de Polignac number, because 22315315 - 2⁷ = 22315187 is a prime.

It is a super-3 number, since 3×22315315³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34384 + ... + 35026.

It is an arithmetic number, because the mean of its divisors is an integer number (1831536).

Almost surely, 2^22315315 is an apocalyptic number.

22315315 is a deficient number, since it is larger than the sum of its proper divisors (6989261).

22315315 is a wasteful number, since it uses less digits than its factorization.

22315315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its digits is 900, while the sum is 22.

The square root of 22315315 is about 4723.9088687230. The cubic root of 22315315 is about 281.5362622821.

Adding to 22315315 its reverse (51351322), we get a palindrome (73666637).

The spelling of 22315315 in words is "twenty-two million, three hundred fifteen thousand, three hundred fifteen".