222404173 has 2 divisors, whose sum is σ = 222404174. Its totient is φ = 222404172.

The previous prime is 222404111. The next prime is 222404179. The reversal of 222404173 is 371404222.

It is a happy number.

222404173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201583204 + 20820969 = 14198^2 + 4563^2 .

It is a cyclic number.

It is not a de Polignac number, because 222404173 - 2⁹ = 222403661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222404179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111202086 + 111202087.

It is an arithmetic number, because the mean of its divisors is an integer number (111202087).

Almost surely, 2^222404173 is an apocalyptic number.

It is an amenable number.

222404173 is a deficient number, since it is larger than the sum of its proper divisors (1).

222404173 is an equidigital number, since it uses as much as digits as its factorization.

222404173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 222404173 is about 14913.2214159115. The cubic root of 222404173 is about 605.8721324322.

Adding to 222404173 its reverse (371404222), we get a palindrome (593808395).

The spelling of 222404173 in words is "two hundred twenty-two million, four hundred four thousand, one hundred seventy-three".