22164223 has 4 divisors (see below), whose sum is σ = 22261240. Its totient is φ = 22067208.

The previous prime is 22164199. The next prime is 22164227. The reversal of 22164223 is 32246122.

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 22164223 - 2²¹ = 20067071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22164194 and 22164203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164227) 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, 48165 + ... + 48622.

It is an arithmetic number, because the mean of its divisors is an integer number (5565310).

Almost surely, 2^22164223 is an apocalyptic number.

22164223 is a deficient number, since it is larger than the sum of its proper divisors (97017).

22164223 is an equidigital number, since it uses as much as digits as its factorization.

22164223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97016.

The product of its digits is 1152, while the sum is 22.

The square root of 22164223 is about 4707.8894422023. The cubic root of 22164223 is about 280.8994164729.

The spelling of 22164223 in words is "twenty-two million, one hundred sixty-four thousand, two hundred twenty-three".