22231233 has 16 divisors (see below), whose sum is σ = 33015360. Its totient is φ = 14784768.

The previous prime is 22231219. The next prime is 22231241. The reversal of 22231233 is 33213222.

It is a happy number.

It is not a de Polignac number, because 22231233 - 2⁶ = 22231169 is a prime.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14866 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (2063460).

Almost surely, 2^22231233 is an apocalyptic number.

It is an amenable number.

22231233 is a deficient number, since it is larger than the sum of its proper divisors (10784127).

22231233 is a wasteful number, since it uses less digits than its factorization.

22231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 2007 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22231233 is about 4715.0008483562. Note that the first 3 decimals coincide. The cubic root of 22231233 is about 281.1822165539.

Adding to 22231233 its reverse (33213222), we get a palindrome (55444455).

The spelling of 22231233 in words is "twenty-two million, two hundred thirty-one thousand, two hundred thirty-three".