220101210111217 has 2 divisors, whose sum is σ = 220101210111218. Its totient is φ = 220101210111216.

The previous prime is 220101210111151. The next prime is 220101210111323. The reversal of 220101210111217 is 712111012101022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122418645975616 + 97682564135601 = 11064296^2 + 9883449^2 .

It is a cyclic number.

It is not a de Polignac number, because 220101210111217 - 2⁷ = 220101210111089 is a prime.

It is not a weakly prime, because it can be changed into another prime (220101210111617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050605055608 + 110050605055609.

It is an arithmetic number, because the mean of its divisors is an integer number (110050605055609).

Almost surely, 2^{220101210111217} is an apocalyptic number.

It is an amenable number.

220101210111217 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101210111217 is an equidigital number, since it uses as much as digits as its factorization.

220101210111217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 220101210111217 its reverse (712111012101022), we get a palindrome (932212222212239).

The spelling of 220101210111217 in words is "two hundred twenty trillion, one hundred one billion, two hundred ten million, one hundred eleven thousand, two hundred seventeen".