212018807017 has 2 divisors, whose sum is σ = 212018807018. Its totient is φ = 212018807016.

The previous prime is 212018806973. The next prime is 212018807047. The reversal of 212018807017 is 710708810212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169002387801 + 43016419216 = 411099^2 + 207404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212018807017 is a prime.

It is not a weakly prime, because it can be changed into another prime (212018807047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106009403508 + 106009403509.

It is an arithmetic number, because the mean of its divisors is an integer number (106009403509).

Almost surely, 2^212018807017 is an apocalyptic number.

It is an amenable number.

212018807017 is a deficient number, since it is larger than the sum of its proper divisors (1).

212018807017 is an equidigital number, since it uses as much as digits as its factorization.

212018807017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 37.

The spelling of 212018807017 in words is "two hundred twelve billion, eighteen million, eight hundred seven thousand, seventeen".