211110210101117 has 2 divisors, whose sum is σ = 211110210101118. Its totient is φ = 211110210101116.

The previous prime is 211110210101113. The next prime is 211110210101129. The reversal of 211110210101117 is 711101012011112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106608536669881 + 104501673431236 = 10325141^2 + 10222606^2 .

It is a cyclic number.

It is not a de Polignac number, because 211110210101117 - 2² = 211110210101113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211110210101113) 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, 105555105050558 + 105555105050559.

It is an arithmetic number, because the mean of its divisors is an integer number (105555105050559).

Almost surely, 2^{211110210101117} is an apocalyptic number.

It is an amenable number.

211110210101117 is a deficient number, since it is larger than the sum of its proper divisors (1).

211110210101117 is an equidigital number, since it uses as much as digits as its factorization.

211110210101117 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 20.

Adding to 211110210101117 its reverse (711101012011112), we get a palindrome (922211222112229).

The spelling of 211110210101117 in words is "two hundred eleven trillion, one hundred ten billion, two hundred ten million, one hundred one thousand, one hundred seventeen".