222047568 has 70 divisors (see below), whose sum is σ = 645064554. Its totient is φ = 74011968.

The previous prime is 222047561. The next prime is 222047569. The reversal of 222047568 is 865740222.

It can be written as a sum of positive squares in only one way, i.e., 118984464 + 103063104 = 10908^2 + 10152^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222047561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2146 + ... + 21182.

Almost surely, 2^222047568 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 222047568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322532277).

222047568 is an abundant number, since it is smaller than the sum of its proper divisors (423016986).

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

222047568 is an equidigital number, since it uses as much as digits as its factorization.

222047568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19063 (or 19042 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 222047568 is about 14901.2606178135. The cubic root of 222047568 is about 605.5481387951.

The spelling of 222047568 in words is "two hundred twenty-two million, forty-seven thousand, five hundred sixty-eight".