22232112 has 80 divisors (see below), whose sum is σ = 66281472. Its totient is φ = 6289920.

The previous prime is 22232087. The next prime is 22232117. The reversal of 22232112 is 21123222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22232091 and 22232100.

It is not an unprimeable number, because it can be changed into a prime (22232117) 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, 42412 + ... + 42932.

Almost surely, 2^22232112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33140736).

22232112 is an abundant number, since it is smaller than the sum of its proper divisors (44049360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22232112 is a wasteful number, since it uses less digits than its factorization.

22232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 660 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 22232112 is about 4715.0940605676. The cubic root of 22232112 is about 281.1859223899.

Adding to 22232112 its reverse (21123222), we get a palindrome (43355334).

The spelling of 22232112 in words is "twenty-two million, two hundred thirty-two thousand, one hundred twelve".