22213223 has 8 divisors (see below), whose sum is σ = 23446320. Its totient is φ = 20986560.

The previous prime is 22213183. The next prime is 22213259. The reversal of 22213223 is 32231222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22213223 - 2¹⁰ = 22212199 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 (22213823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6611 + ... + 9387.

It is an arithmetic number, because the mean of its divisors is an integer number (2930790).

Almost surely, 2^22213223 is an apocalyptic number.

22213223 is a deficient number, since it is larger than the sum of its proper divisors (1233097).

22213223 is a wasteful number, since it uses less digits than its factorization.

22213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217.

The product of its digits is 288, while the sum is 17.

The square root of 22213223 is about 4713.0905995960. The cubic root of 22213223 is about 281.1062654532.

Adding to 22213223 its reverse (32231222), we get a palindrome (54444445).

The spelling of 22213223 in words is "twenty-two million, two hundred thirteen thousand, two hundred twenty-three".