22232200 has 48 divisors (see below), whose sum is σ = 52312500. Its totient is φ = 8785920.

The previous prime is 22232173. The next prime is 22232201. The reversal of 22232200 is 223222.

22232200 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 6 ways, for example, as 3896676 + 18335524 = 1974^2 + 4282^2 .

It is not an unprimeable number, because it can be changed into a prime (22232201) 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 11 ways as a sum of consecutive naturals, for example, 17176 + ... + 18424.

Almost surely, 2^22232200 is an apocalyptic number.

22232200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26156250).

22232200 is an abundant number, since it is smaller than the sum of its proper divisors (30080300).

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

22232200 is a wasteful number, since it uses less digits than its factorization.

22232200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22232200 is about 4715.1033922916. The cubic root of 22232200 is about 281.1862933897.

Adding to 22232200 its reverse (223222), we get a palindrome (22455422).

The spelling of 22232200 in words is "twenty-two million, two hundred thirty-two thousand, two hundred".