22199112 has 96 divisors (see below), whose sum is σ = 66601080. Its totient is φ = 6635520.

The previous prime is 22199077. The next prime is 22199119. The reversal of 22199112 is 21199122.

It can be written as a sum of positive squares in 4 ways, for example, as 21846276 + 352836 = 4674^2 + 594^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22199119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34312 + ... + 34952.

Almost surely, 2^22199112 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 22199112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33300540).

22199112 is an abundant number, since it is smaller than the sum of its proper divisors (44401968).

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

22199112 is a wasteful number, since it uses less digits than its factorization.

22199112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 696 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 22199112 is about 4711.5933610616. The cubic root of 22199112 is about 281.0467283814.

The spelling of 22199112 in words is "twenty-two million, one hundred ninety-nine thousand, one hundred twelve".