222722556 has 48 divisors (see below), whose sum is σ = 597520896. Its totient is φ = 63249984.

The previous prime is 222722551. The next prime is 222722557. The reversal of 222722556 is 655227222.

222722556 is digitally balanced in base 3, 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 (222722551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6090 + ... + 21966.

It is an arithmetic number, because the mean of its divisors is an integer number (12448352).

Almost surely, 2^222722556 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 222722556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298760448).

222722556 is an abundant number, since it is smaller than the sum of its proper divisors (374798340).

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

222722556 is a wasteful number, since it uses less digits than its factorization.

222722556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058 (or 16056 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 222722556 is about 14923.8921196851. The cubic root of 222722556 is about 606.1611069438.

Adding to 222722556 its reverse (655227222), we get a palindrome (877949778).

The spelling of 222722556 in words is "two hundred twenty-two million, seven hundred twenty-two thousand, five hundred fifty-six".