1212101017 has 2 divisors, whose sum is σ = 1212101018. Its totient is φ = 1212101016.

The previous prime is 1212100993. The next prime is 1212101021. The reversal of 1212101017 is 7101012121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196883216 + 15217801 = 34596^2 + 3901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212101017 - 2⁷ = 1212100889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212101027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606050508 + 606050509.

It is an arithmetic number, because the mean of its divisors is an integer number (606050509).

Almost surely, 2^1212101017 is an apocalyptic number.

It is an amenable number.

1212101017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212101017 is an equidigital number, since it uses as much as digits as its factorization.

1212101017 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1212101017 is about 34815.2411595841. The cubic root of 1212101017 is about 1066.2186427816.

Adding to 1212101017 its reverse (7101012121), we get a palindrome (8313113138).

The spelling of 1212101017 in words is "one billion, two hundred twelve million, one hundred one thousand, seventeen".