221120006017 has 2 divisors, whose sum is σ = 221120006018. Its totient is φ = 221120006016.

The previous prime is 221120006011. The next prime is 221120006033. The reversal of 221120006017 is 710600021122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155575813761 + 65544192256 = 394431^2 + 256016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221120006017 is a prime.

It is not a weakly prime, because it can be changed into another prime (221120006011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560003008 + 110560003009.

It is an arithmetic number, because the mean of its divisors is an integer number (110560003009).

Almost surely, 2^221120006017 is an apocalyptic number.

It is an amenable number.

221120006017 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120006017 is an equidigital number, since it uses as much as digits as its factorization.

221120006017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 221120006017 its reverse (710600021122), we get a palindrome (931720027139).

The spelling of 221120006017 in words is "two hundred twenty-one billion, one hundred twenty million, six thousand, seventeen".