10011211117 has 2 divisors, whose sum is σ = 10011211118. Its totient is φ = 10011211116.

The previous prime is 10011211079. The next prime is 10011211139. The reversal of 10011211117 is 71111211001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10005800841 + 5410276 = 100029^2 + 2326^2 .

It is an emirp because it is prime and its reverse (71111211001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10011211117 - 2¹¹ = 10011209069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10011211117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011281117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005605558 + 5005605559.

It is an arithmetic number, because the mean of its divisors is an integer number (5005605559).

Almost surely, 2^10011211117 is an apocalyptic number.

It is an amenable number.

10011211117 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011211117 is an equidigital number, since it uses as much as digits as its factorization.

10011211117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 10011211117 its reverse (71111211001), we get a palindrome (81122422118).

The spelling of 10011211117 in words is "ten billion, eleven million, two hundred eleven thousand, one hundred seventeen".