222522173 has 2 divisors, whose sum is σ = 222522174. Its totient is φ = 222522172.

The previous prime is 222522169. The next prime is 222522227. The reversal of 222522173 is 371225222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151339204 + 71182969 = 12302^2 + 8437^2 .

It is a cyclic number.

It is not a de Polignac number, because 222522173 - 2² = 222522169 is a prime.

It is a super-2 number, since 2×222522173² = 99032234953283858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222522103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111261086 + 111261087.

It is an arithmetic number, because the mean of its divisors is an integer number (111261087).

Almost surely, 2^222522173 is an apocalyptic number.

It is an amenable number.

222522173 is a deficient number, since it is larger than the sum of its proper divisors (1).

222522173 is an equidigital number, since it uses as much as digits as its factorization.

222522173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 222522173 is about 14917.1771123092. The cubic root of 222522173 is about 605.9792651214.

Adding to 222522173 its reverse (371225222), we get a palindrome (593747395).

The spelling of 222522173 in words is "two hundred twenty-two million, five hundred twenty-two thousand, one hundred seventy-three".