13222232 has 16 divisors (see below), whose sum is σ = 25091640. Its totient is φ = 6531136.

The previous prime is 13222229. The next prime is 13222267. The reversal of 13222232 is 23222231.

It is a self number, because there is not a number n which added to its sum of digits gives 13222232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9293 + ... + 10620.

Almost surely, 2^13222232 is an apocalyptic number.

It is an amenable number.

13222232 is a deficient number, since it is larger than the sum of its proper divisors (11869408).

13222232 is a wasteful number, since it uses less digits than its factorization.

13222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002 (or 19998 counting only the distinct ones).

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

The square root of 13222232 is about 3636.2387160361. The cubic root of 13222232 is about 236.4657564468.

Adding to 13222232 its reverse (23222231), we get a palindrome (36444463).

Subtracting 13222232 from its reverse (23222231), we obtain a palindrome (9999999).

The spelling of 13222232 in words is "thirteen million, two hundred twenty-two thousand, two hundred thirty-two".