222730165 has 16 divisors (see below), whose sum is σ = 305706240. Its totient is φ = 152605440.

The previous prime is 222730159. The next prime is 222730199. The reversal of 222730165 is 561037222.

It is not a de Polignac number, because 222730165 - 2⁷ = 222730037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69805 + ... + 72925.

It is an arithmetic number, because the mean of its divisors is an integer number (19106640).

Almost surely, 2^222730165 is an apocalyptic number.

It is an amenable number.

222730165 is a deficient number, since it is larger than the sum of its proper divisors (82976075).

222730165 is a wasteful number, since it uses less digits than its factorization.

222730165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 222730165 is about 14924.1470443037. The cubic root of 222730165 is about 606.1680097431.

Adding to 222730165 its reverse (561037222), we get a palindrome (783767387).

The spelling of 222730165 in words is "two hundred twenty-two million, seven hundred thirty thousand, one hundred sixty-five".