22133212 has 6 divisors (see below), whose sum is σ = 38733128. Its totient is φ = 11066604.

The previous prime is 22133203. The next prime is 22133263. The reversal of 22133212 is 21233122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766648 + ... + 2766655.

Almost surely, 2^22133212 is an apocalyptic number.

It is an amenable number.

22133212 is a deficient number, since it is larger than the sum of its proper divisors (16599916).

22133212 is a wasteful number, since it uses less digits than its factorization.

22133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533307 (or 5533305 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 22133212 is about 4704.5947753234. The cubic root of 22133212 is about 280.7683488268.

Adding to 22133212 its reverse (21233122), we get a palindrome (43366334).

It can be divided in two parts, 221 and 33212, that added together give a palindrome (33433).

The spelling of 22133212 in words is "twenty-two million, one hundred thirty-three thousand, two hundred twelve".