22224899 has 4 divisors (see below), whose sum is σ = 23532264. Its totient is φ = 20917536.

The previous prime is 22224893. The next prime is 22224941. The reversal of 22224899 is 99842222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22224899 - 2⁴ = 22224883 is a prime.

It is a super-2 number, since 2×22224899² = 987892271120402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22224893) 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, 653657 + ... + 653690.

It is an arithmetic number, because the mean of its divisors is an integer number (5883066).

Almost surely, 2^22224899 is an apocalyptic number.

22224899 is a deficient number, since it is larger than the sum of its proper divisors (1307365).

22224899 is a wasteful number, since it uses less digits than its factorization.

22224899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307364.

The product of its digits is 41472, while the sum is 38.

The square root of 22224899 is about 4714.3291145188. The cubic root of 22224899 is about 281.1555097231.

The spelling of 22224899 in words is "twenty-two million, two hundred twenty-four thousand, eight hundred ninety-nine".