22045223 has 4 divisors (see below), whose sum is σ = 22093920. Its totient is φ = 21996528.

The previous prime is 22045207. The next prime is 22045237. The reversal of 22045223 is 32254022.

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 22045223 - 2⁴ = 22045207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22045195 and 22045204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22045273) 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, 23663 + ... + 24576.

It is an arithmetic number, because the mean of its divisors is an integer number (5523480).

Almost surely, 2^22045223 is an apocalyptic number.

22045223 is a deficient number, since it is larger than the sum of its proper divisors (48697).

22045223 is an equidigital number, since it uses as much as digits as its factorization.

22045223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48696.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22045223 is about 4695.2340729723. The cubic root of 22045223 is about 280.3957965471.

Adding to 22045223 its reverse (32254022), we get a palindrome (54299245).

The spelling of 22045223 in words is "twenty-two million, forty-five thousand, two hundred twenty-three".