22232223 has 48 divisors (see below), whose sum is σ = 37171680. Its totient is φ = 12690432.

The previous prime is 22232219. The next prime is 22232233. The reversal of 22232223 is 32223222.

It is not a de Polignac number, because 22232223 - 2² = 22232219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22232196 and 22232205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162211 + ... + 162347.

It is an arithmetic number, because the mean of its divisors is an integer number (774410).

Almost surely, 2^22232223 is an apocalyptic number.

22232223 is a deficient number, since it is larger than the sum of its proper divisors (14939457).

22232223 is a wasteful number, since it uses less digits than its factorization.

22232223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

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

The square root of 22232223 is about 4715.1058312619. The cubic root of 22232223 is about 281.1863903554.

Adding to 22232223 its reverse (32223222), we get a palindrome (54455445).

Subtracting 22232223 from its reverse (32223222), we obtain a palindrome (9990999).

It can be divided in two parts, 2223222 and 3, that multiplied together give a palindrome (6669666).

The spelling of 22232223 in words is "twenty-two million, two hundred thirty-two thousand, two hundred twenty-three".