22421200 has 30 divisors (see below), whose sum is σ = 53867894. Its totient is φ = 8968320.

The previous prime is 22421183. The next prime is 22421233. The reversal of 22421200 is 212422.

It can be written as a sum of positive squares in 3 ways, for example, as 4511376 + 17909824 = 2124^2 + 4232^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27627 + ... + 28426.

Almost surely, 2^22421200 is an apocalyptic number.

22421200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22421200 is an abundant number, since it is smaller than the sum of its proper divisors (31446694).

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

22421200 is a wasteful number, since it uses less digits than its factorization.

22421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56071 (or 56060 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22421200 is about 4735.1029555861. The cubic root of 22421200 is about 281.9808514403.

Adding to 22421200 its reverse (212422), we get a palindrome (22633622).

The spelling of 22421200 in words is "twenty-two million, four hundred twenty-one thousand, two hundred".