1210020212017 has 2 divisors, whose sum is σ = 1210020212018. Its totient is φ = 1210020212016.

The previous prime is 1210020211979. The next prime is 1210020212021. The reversal of 1210020212017 is 7102120200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194465383056 + 15554828961 = 1092916^2 + 124719^2 .

It is an emirp because it is prime and its reverse (7102120200121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210020212017 - 2⁷ = 1210020211889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210020211985 and 1210020212003.

It is not a weakly prime, because it can be changed into another prime (1210020212057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605010106008 + 605010106009.

It is an arithmetic number, because the mean of its divisors is an integer number (605010106009).

Almost surely, 2^{1210020212017} is an apocalyptic number.

It is an amenable number.

1210020212017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210020212017 is an equidigital number, since it uses as much as digits as its factorization.

1210020212017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1210020212017 its reverse (7102120200121), we get a palindrome (8312140412138).

The spelling of 1210020212017 in words is "one trillion, two hundred ten billion, twenty million, two hundred twelve thousand, seventeen".