222517172 has 6 divisors (see below), whose sum is σ = 389405058. Its totient is φ = 111258584.

The previous prime is 222517159. The next prime is 222517231. The reversal of 222517172 is 271715222.

It can be written as a sum of positive squares in only one way, i.e., 212110096 + 10407076 = 14564^2 + 3226^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27814643 + ... + 27814650.

It is an arithmetic number, because the mean of its divisors is an integer number (64900843).

Almost surely, 2^222517172 is an apocalyptic number.

It is an amenable number.

222517172 is a deficient number, since it is larger than the sum of its proper divisors (166887886).

222517172 is a wasteful number, since it uses less digits than its factorization.

222517172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55629297 (or 55629295 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 222517172 is about 14917.0094858185. The cubic root of 222517172 is about 605.9747254614.

The spelling of 222517172 in words is "two hundred twenty-two million, five hundred seventeen thousand, one hundred seventy-two".