222242656 has 12 divisors (see below), whose sum is σ = 437540292. Its totient is φ = 111121312.

The previous prime is 222242599. The next prime is 222242659. The reversal of 222242656 is 656242222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222242659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472510 + ... + 3472573.

It is an arithmetic number, because the mean of its divisors is an integer number (36461691).

Almost surely, 2^222242656 is an apocalyptic number.

It is an amenable number.

222242656 is a deficient number, since it is larger than the sum of its proper divisors (215297636).

222242656 is an equidigital number, since it uses as much as digits as its factorization.

222242656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945093 (or 6945085 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 222242656 is about 14907.8052039863. The cubic root of 222242656 is about 605.7254290276.

Adding to 222242656 its reverse (656242222), we get a palindrome (878484878).

The spelling of 222242656 in words is "two hundred twenty-two million, two hundred forty-two thousand, six hundred fifty-six".