222252217 has 16 divisors (see below), whose sum is σ = 246141504. Its totient is φ = 199000000.

The previous prime is 222252211. The next prime is 222252227. The reversal of 222252217 is 712252222.

It is a cyclic number.

It is not a de Polignac number, because 222252217 - 2²³ = 213863609 is a prime.

It is a super-2 number, since 2×222252217² = 98792095922830178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222252191 and 222252200.

It is not an unprimeable number, because it can be changed into a prime (222252211) 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 15 ways as a sum of consecutive naturals, for example, 278463 + ... + 279259.

It is an arithmetic number, because the mean of its divisors is an integer number (15383844).

Almost surely, 2^222252217 is an apocalyptic number.

It is an amenable number.

222252217 is a deficient number, since it is larger than the sum of its proper divisors (23889287).

222252217 is a wasteful number, since it uses less digits than its factorization.

222252217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its digits is 2240, while the sum is 25.

The square root of 222252217 is about 14908.1258714836. The cubic root of 222252217 is about 605.7341151155.

It can be divided in two parts, 22225 and 2217, that added together give a palindrome (24442).

The spelling of 222252217 in words is "two hundred twenty-two million, two hundred fifty-two thousand, two hundred seventeen".