211012100017 has 2 divisors, whose sum is σ = 211012100018. Its totient is φ = 211012100016.

The previous prime is 211012099993. The next prime is 211012100027. The reversal of 211012100017 is 710001210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198603031201 + 12409068816 = 445649^2 + 111396^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012100017 - 2¹¹ = 211012097969 is a prime.

It is a super-2 number, since 2×211012100017² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211012100027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506050008 + 105506050009.

It is an arithmetic number, because the mean of its divisors is an integer number (105506050009).

Almost surely, 2^211012100017 is an apocalyptic number.

It is an amenable number.

211012100017 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012100017 is an equidigital number, since it uses as much as digits as its factorization.

211012100017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 211012100017 its reverse (710001210112), we get a palindrome (921013310129).

The spelling of 211012100017 in words is "two hundred eleven billion, twelve million, one hundred thousand, seventeen".