22152232 has 16 divisors (see below), whose sum is σ = 42062400. Its totient is φ = 10935600.

The previous prime is 22152223. The next prime is 22152239. The reversal of 22152232 is 23225122.

It is not an unprimeable number, because it can be changed into a prime (22152239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16894 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (2628900).

Almost surely, 2^22152232 is an apocalyptic number.

It is an amenable number.

22152232 is a deficient number, since it is larger than the sum of its proper divisors (19910168).

22152232 is a wasteful number, since it uses less digits than its factorization.

22152232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35136 (or 35132 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 22152232 is about 4706.6157693188. The cubic root of 22152232 is about 280.8487511506.

Adding to 22152232 its reverse (23225122), we get a palindrome (45377354).

The spelling of 22152232 in words is "twenty-two million, one hundred fifty-two thousand, two hundred thirty-two".