227255221065 has 16 divisors (see below), whose sum is σ = 366944212800. Its totient is φ = 120090831552.

The previous prime is 227255221051. The next prime is 227255221079. The reversal of 227255221065 is 560122552722.

It is an interprime number because it is at equal distance from previous prime (227255221051) and next prime (227255221079).

It is not a de Polignac number, because 227255221065 - 2⁸ = 227255220809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69495375 + ... + 69498644.

It is an arithmetic number, because the mean of its divisors is an integer number (22934013300).

Almost surely, 2^227255221065 is an apocalyptic number.

It is an amenable number.

227255221065 is a deficient number, since it is larger than the sum of its proper divisors (139688991735).

227255221065 is a wasteful number, since it uses less digits than its factorization.

227255221065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138994136.

The product of its (nonzero) digits is 168000, while the sum is 39.

Adding to 227255221065 its reverse (560122552722), we get a palindrome (787377773787).

The spelling of 227255221065 in words is "two hundred twenty-seven billion, two hundred fifty-five million, two hundred twenty-one thousand, sixty-five".