222412400 has 60 divisors (see below), whose sum is σ = 610688592. Its totient is φ = 76254720.

The previous prime is 222412391. The next prime is 222412417. The reversal of 222412400 is 4214222.

It is a happy number.

222412400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36917 + ... + 42516.

Almost surely, 2^222412400 is an apocalyptic number.

222412400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222412400 is an abundant number, since it is smaller than the sum of its proper divisors (388276192).

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

222412400 is a wasteful number, since it uses less digits than its factorization.

222412400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79458 (or 79447 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 222412400 is about 14913.4972424311. The cubic root of 222412400 is about 605.8796029883.

Adding to 222412400 its reverse (4214222), we get a palindrome (226626622).

The spelling of 222412400 in words is "two hundred twenty-two million, four hundred twelve thousand, four hundred".