222655223 has 4 divisors (see below), whose sum is σ = 254463120. Its totient is φ = 190847328.

The previous prime is 222655217. The next prime is 222655267. The reversal of 222655223 is 322556222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322556222 = 2 ⋅161278111.

It is not a de Polignac number, because 222655223 - 2¹² = 222651127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222655283) 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 3 ways as a sum of consecutive naturals, for example, 15903938 + ... + 15903951.

It is an arithmetic number, because the mean of its divisors is an integer number (63615780).

Almost surely, 2^222655223 is an apocalyptic number.

222655223 is a deficient number, since it is larger than the sum of its proper divisors (31807897).

222655223 is an equidigital number, since it uses as much as digits as its factorization.

222655223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31807896.

The product of its digits is 14400, while the sum is 29.

The square root of 222655223 is about 14921.6360698149. The cubic root of 222655223 is about 606.1000163501.

Subtracting 222655223 from its reverse (322556222), we obtain a palindrome (99900999).

The spelling of 222655223 in words is "two hundred twenty-two million, six hundred fifty-five thousand, two hundred twenty-three".