220101222217 has 2 divisors, whose sum is σ = 220101222218. Its totient is φ = 220101222216.

The previous prime is 220101222199. The next prime is 220101222247. The reversal of 220101222217 is 712222101022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147228759616 + 72872462601 = 383704^2 + 269949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220101222217 is a prime.

It is not a weakly prime, because it can be changed into another prime (220101222247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050611108 + 110050611109.

It is an arithmetic number, because the mean of its divisors is an integer number (110050611109).

Almost surely, 2^220101222217 is an apocalyptic number.

It is an amenable number.

220101222217 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101222217 is an equidigital number, since it uses as much as digits as its factorization.

220101222217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 220101222217 its reverse (712222101022), we get a palindrome (932323323239).

The spelling of 220101222217 in words is "two hundred twenty billion, one hundred one million, two hundred twenty-two thousand, two hundred seventeen".