222418168 has 64 divisors (see below), whose sum is σ = 496857600. Its totient is φ = 91324800.

The previous prime is 222418159. The next prime is 222418169. The reversal of 222418168 is 861814222.

222418168 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 not an unprimeable number, because it can be changed into a prime (222418169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244771 + ... + 245677.

It is an arithmetic number, because the mean of its divisors is an integer number (7763400).

Almost surely, 2^222418168 is an apocalyptic number.

222418168 is a gapful number since it is divisible by the number (28) 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 222418168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248428800).

222418168 is an abundant number, since it is smaller than the sum of its proper divisors (274439432).

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

222418168 is a wasteful number, since it uses less digits than its factorization.

222418168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1096 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 222418168 is about 14913.6906230483. The cubic root of 222418168 is about 605.8848405310.

The spelling of 222418168 in words is "two hundred twenty-two million, four hundred eighteen thousand, one hundred sixty-eight".