222644224 has 48 divisors (see below), whose sum is σ = 485699760. Its totient is φ = 101191680.

The previous prime is 222644203. The next prime is 222644237. The reversal of 222644224 is 422446222.

It is a junction number, because it is equal to n+sod(n) for n = 222644192 and 222644201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17587 + ... + 27469.

It is an arithmetic number, because the mean of its divisors is an integer number (10118745).

Almost surely, 2^222644224 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 222644224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242849880).

222644224 is an abundant number, since it is smaller than the sum of its proper divisors (263055536).

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

222644224 is an equidigital number, since it uses as much as digits as its factorization.

222644224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9916 (or 9896 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 222644224 is about 14921.2675064821. The cubic root of 222644224 is about 606.0900358913.

It can be divided in two parts, 222 and 644224, that added together give a palindrome (644446).

The spelling of 222644224 in words is "two hundred twenty-two million, six hundred forty-four thousand, two hundred twenty-four".