222272688 has 80 divisors (see below), whose sum is σ = 663278976. Its totient is φ = 63390720.

The previous prime is 222272683. The next prime is 222272689. The reversal of 222272688 is 886272222.

It is not an unprimeable number, because it can be changed into a prime (222272681) 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, 3406 + ... + 21357.

Almost surely, 2^222272688 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 222272688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331639488).

222272688 is an abundant number, since it is smaller than the sum of its proper divisors (441006288).

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

222272688 is a wasteful number, since it uses less digits than its factorization.

222272688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24802 (or 24796 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 222272688 is about 14908.8124275544. The cubic root of 222272688 is about 605.7527120090.

The spelling of 222272688 in words is "two hundred twenty-two million, two hundred seventy-two thousand, six hundred eighty-eight".