222115600 has 120 divisors (see below), whose sum is σ = 636566400. Its totient is φ = 72821760.

The previous prime is 222115583. The next prime is 222115601. The reversal of 222115600 is 6511222.

222115600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222115601) 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, 62676 + ... + 66124.

It is an arithmetic number, because the mean of its divisors is an integer number (5304720).

Almost surely, 2^222115600 is an apocalyptic number.

222115600 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 222115600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318283200).

222115600 is an abundant number, since it is smaller than the sum of its proper divisors (414450800).

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

222115600 is a wasteful number, since it uses less digits than its factorization.

222115600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 222115600 is about 14903.5432028763. The cubic root of 222115600 is about 605.6099760622.

Adding to 222115600 its reverse (6511222), we get a palindrome (228626822).

The spelling of 222115600 in words is "two hundred twenty-two million, one hundred fifteen thousand, six hundred".