212122160017 has 2 divisors, whose sum is σ = 212122160018. Its totient is φ = 212122160016.

The previous prime is 212122159939. The next prime is 212122160021. The reversal of 212122160017 is 710061221212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176266465281 + 35855694736 = 419841^2 + 189356^2 .

It is a cyclic number.

It is not a de Polignac number, because 212122160017 - 2¹¹ = 212122157969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212122159973 and 212122160000.

It is not a weakly prime, because it can be changed into another prime (212122160087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106061080008 + 106061080009.

It is an arithmetic number, because the mean of its divisors is an integer number (106061080009).

Almost surely, 2^212122160017 is an apocalyptic number.

It is an amenable number.

212122160017 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122160017 is an equidigital number, since it uses as much as digits as its factorization.

212122160017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 212122160017 its reverse (710061221212), we get a palindrome (922183381229).

The spelling of 212122160017 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred sixty thousand, seventeen".