212028017017 has 2 divisors, whose sum is σ = 212028017018. Its totient is φ = 212028017016.

The previous prime is 212028016979. The next prime is 212028017087. The reversal of 212028017017 is 710710820212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122121592681 + 89906424336 = 349459^2 + 299844^2 .

It is a cyclic number.

It is not a de Polignac number, because 212028017017 - 2³⁵ = 177668278649 is a prime.

It is a super-2 number, since 2×212028017017² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212028017017.

It is not a weakly prime, because it can be changed into another prime (212028017087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106014008508 + 106014008509.

It is an arithmetic number, because the mean of its divisors is an integer number (106014008509).

Almost surely, 2^212028017017 is an apocalyptic number.

It is an amenable number.

212028017017 is a deficient number, since it is larger than the sum of its proper divisors (1).

212028017017 is an equidigital number, since it uses as much as digits as its factorization.

212028017017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

Adding to 212028017017 its reverse (710710820212), we get a palindrome (922738837229).

The spelling of 212028017017 in words is "two hundred twelve billion, twenty-eight million, seventeen thousand, seventeen".