22265699 has 4 divisors (see below), whose sum is σ = 23575464. Its totient is φ = 20955936.

The previous prime is 22265693. The next prime is 22265723. The reversal of 22265699 is 99656222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99656222 = 2 ⋅49828111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22265699 is a prime.

It is a super-2 number, since 2×22265699² = 991522703917202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22265693) 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, 654857 + ... + 654890.

It is an arithmetic number, because the mean of its divisors is an integer number (5893866).

Almost surely, 2^22265699 is an apocalyptic number.

22265699 is a deficient number, since it is larger than the sum of its proper divisors (1309765).

22265699 is a wasteful number, since it uses less digits than its factorization.

22265699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309764.

The product of its digits is 116640, while the sum is 41.

The square root of 22265699 is about 4718.6543632693. The cubic root of 22265699 is about 281.3274509987.

The spelling of 22265699 in words is "twenty-two million, two hundred sixty-five thousand, six hundred ninety-nine".