211012111211017 has 2 divisors, whose sum is σ = 211012111211018. Its totient is φ = 211012111211016.

The previous prime is 211012111210993. The next prime is 211012111211021. The reversal of 211012111211017 is 710112111210112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188351359981456 + 22660751229561 = 13724116^2 + 4760331^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012111211017 - 2⁷ = 211012111210889 is a prime.

It is a super-2 number, since 2×211012111211017² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211012111211617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506055605508 + 105506055605509.

It is an arithmetic number, because the mean of its divisors is an integer number (105506055605509).

Almost surely, 2^{211012111211017} is an apocalyptic number.

It is an amenable number.

211012111211017 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012111211017 is an equidigital number, since it uses as much as digits as its factorization.

211012111211017 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 22.

Adding to 211012111211017 its reverse (710112111210112), we get a palindrome (921124222421129).

The spelling of 211012111211017 in words is "two hundred eleven trillion, twelve billion, one hundred eleven million, two hundred eleven thousand, seventeen".