201000211011217 has 2 divisors, whose sum is σ = 201000211011218. Its totient is φ = 201000211011216.

The previous prime is 201000211011199. The next prime is 201000211011251. The reversal of 201000211011217 is 712110112000102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101771597652481 + 99228613358736 = 10088191^2 + 9961356^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000211011217 - 2³⁹ = 200450455197329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201000211011194 and 201000211011203.

It is not a weakly prime, because it can be changed into another prime (201000212011217) by changing a digit.

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 as a sum of consecutive naturals, namely, 100500105505608 + 100500105505609.

It is an arithmetic number, because the mean of its divisors is an integer number (100500105505609).

Almost surely, 2^{201000211011217} is an apocalyptic number.

It is an amenable number.

201000211011217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000211011217 is an equidigital number, since it uses as much as digits as its factorization.

201000211011217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 201000211011217 its reverse (712110112000102), we get a palindrome (913110323011319).

The spelling of 201000211011217 in words is "two hundred one trillion, two hundred eleven million, eleven thousand, two hundred seventeen".