22118497 has 4 divisors (see below), whose sum is σ = 22223536. Its totient is φ = 22013460.

The previous prime is 22118491. The next prime is 22118501. The reversal of 22118497 is 79481122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22118497 - 2²³ = 13729889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22118491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52203 + ... + 52624.

It is an arithmetic number, because the mean of its divisors is an integer number (5555884).

Almost surely, 2^22118497 is an apocalyptic number.

It is an amenable number.

22118497 is a deficient number, since it is larger than the sum of its proper divisors (105039).

22118497 is a wasteful number, since it uses less digits than its factorization.

22118497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105038.

The product of its digits is 8064, while the sum is 34.

The square root of 22118497 is about 4703.0306186543. The cubic root of 22118497 is about 280.7061132118.

The spelling of 22118497 in words is "twenty-two million, one hundred eighteen thousand, four hundred ninety-seven".