22223223 has 18 divisors (see below), whose sum is σ = 35285432. Its totient is φ = 13467960.

The previous prime is 22223219. The next prime is 22223231. The reversal of 22223223 is 32232222.

It is not a de Polignac number, because 22223223 - 2² = 22223219 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22223196 and 22223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223263) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9115 + ... + 11292.

Almost surely, 2^22223223 is an apocalyptic number.

22223223 is a deficient number, since it is larger than the sum of its proper divisors (13062209).

22223223 is a wasteful number, since it uses less digits than its factorization.

22223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435 (or 20421 counting only the distinct ones).

The product of its digits is 576, while the sum is 18.

The square root of 22223223 is about 4714.1513552282. The cubic root of 22223223 is about 281.1484421472.

Adding to 22223223 its reverse (32232222), we get a palindrome (54455445).

It can be divided in two parts, 2222 and 3223, that added together give a palindrome (5445).

The spelling of 22223223 in words is "twenty-two million, two hundred twenty-three thousand, two hundred twenty-three".