22224223 has 4 divisors (see below), whose sum is σ = 25399120. Its totient is φ = 19049328.

The previous prime is 22224217. The next prime is 22224229. The reversal of 22224223 is 32242222.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (22224217) and next prime (22224229).

It is a cyclic number.

It is not a de Polignac number, because 22224223 - 2¹³ = 22216031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22224223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224229) 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, 1587438 + ... + 1587451.

It is an arithmetic number, because the mean of its divisors is an integer number (6349780).

Almost surely, 2^22224223 is an apocalyptic number.

22224223 is a deficient number, since it is larger than the sum of its proper divisors (3174897).

22224223 is an equidigital number, since it uses as much as digits as its factorization.

22224223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174896.

The product of its digits is 768, while the sum is 19.

The square root of 22224223 is about 4714.2574176640. The cubic root of 22224223 is about 281.1526591207.

Adding to 22224223 its reverse (32242222), we get a palindrome (54466445).

The spelling of 22224223 in words is "twenty-two million, two hundred twenty-four thousand, two hundred twenty-three".