201111110100217 has 2 divisors, whose sum is σ = 201111110100218. Its totient is φ = 201111110100216.

The previous prime is 201111110100161. The next prime is 201111110100239. The reversal of 201111110100217 is 712001011111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200674309393936 + 436800706281 = 14165956^2 + 660909^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111110100217 - 2¹⁵ = 201111110067449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111110100194 and 201111110100203.

It is not a weakly prime, because it can be changed into another prime (201111110100247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555555050108 + 100555555050109.

It is an arithmetic number, because the mean of its divisors is an integer number (100555555050109).

Almost surely, 2^{201111110100217} is an apocalyptic number.

It is an amenable number.

201111110100217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111110100217 is an equidigital number, since it uses as much as digits as its factorization.

201111110100217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 19.

Adding to 201111110100217 its reverse (712001011111102), we get a palindrome (913112121211319).

The spelling of 201111110100217 in words is "two hundred one trillion, one hundred eleven billion, one hundred ten million, one hundred thousand, two hundred seventeen".