222442223 has 4 divisors (see below), whose sum is σ = 232113648. Its totient is φ = 212770800.

The previous prime is 222442217. The next prime is 222442237. The reversal of 222442223 is 322244222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322244222 = 2 ⋅161122111.

It is a cyclic number.

It is not a de Polignac number, because 222442223 - 2⁶ = 222442159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9671401 = 222442223 / (2 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222442123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4835678 + ... + 4835723.

It is an arithmetic number, because the mean of its divisors is an integer number (58028412).

Almost surely, 2^222442223 is an apocalyptic number.

222442223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

222442223 is a deficient number, since it is larger than the sum of its proper divisors (9671425).

222442223 is an equidigital number, since it uses as much as digits as its factorization.

222442223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671424.

The product of its digits is 3072, while the sum is 23.

The square root of 222442223 is about 14914.4970749938. The cubic root of 222442223 is about 605.9066823236.

Adding to 222442223 its reverse (322244222), we get a palindrome (544686445).

The spelling of 222442223 in words is "two hundred twenty-two million, four hundred forty-two thousand, two hundred twenty-three".