22200223 has 4 divisors (see below), whose sum is σ = 22217248. Its totient is φ = 22183200.

The previous prime is 22200179. The next prime is 22200263. The reversal of 22200223 is 32200222.

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 22200223 - 2²¹ = 20103071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6378 + ... + 9223.

It is an arithmetic number, because the mean of its divisors is an integer number (5554312).

Almost surely, 2^22200223 is an apocalyptic number.

22200223 is a deficient number, since it is larger than the sum of its proper divisors (17025).

22200223 is a wasteful number, since it uses less digits than its factorization.

22200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22200223 is about 4711.7112602535. The cubic root of 22200223 is about 281.0514168228.

Adding to 22200223 its reverse (32200222), we get a palindrome (54400445).

Subtracting 22200223 from its reverse (32200222), we obtain a palindrome (9999999).

The spelling of 22200223 in words is "twenty-two million, two hundred thousand, two hundred twenty-three".