22241915 has 4 divisors (see below), whose sum is σ = 26690304. Its totient is φ = 17793528.

The previous prime is 22241893. The next prime is 22241929. The reversal of 22241915 is 51914222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51914222 = 2 ⋅25957111.

It is a cyclic number.

It is not a de Polignac number, because 22241915 - 2¹⁶ = 22176379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224187 + ... + 2224196.

It is an arithmetic number, because the mean of its divisors is an integer number (6672576).

Almost surely, 2^22241915 is an apocalyptic number.

22241915 is a deficient number, since it is larger than the sum of its proper divisors (4448389).

22241915 is an equidigital number, since it uses as much as digits as its factorization.

22241915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448388.

The product of its digits is 1440, while the sum is 26.

The square root of 22241915 is about 4716.1334798752. The cubic root of 22241915 is about 281.2272449080.

The spelling of 22241915 in words is "twenty-two million, two hundred forty-one thousand, nine hundred fifteen".