222630912 has 396 divisors, whose sum is σ = 819086580. Its totient is φ = 57802752.

The previous prime is 222630911. The next prime is 222630917. The reversal of 222630912 is 219036222.

222630912 is a `hidden beast` number, since 2 + 22 + 630 + 9 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146313216 + 76317696 = 12096^2 + 8736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222630911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7676914 + ... + 7676942.

Almost surely, 2^222630912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222630912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409543290).

222630912 is an abundant number, since it is smaller than the sum of its proper divisors (596455668).

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

222630912 is a wasteful number, since it uses less digits than its factorization.

222630912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 222630912 is about 14920.8214251093. The cubic root of 222630912 is about 606.0779561837.

The spelling of 222630912 in words is "two hundred twenty-two million, six hundred thirty thousand, nine hundred twelve".