12122019983617 has 2 divisors, whose sum is σ = 12122019983618. Its totient is φ = 12122019983616.

The previous prime is 12122019983609. The next prime is 12122019983627. The reversal of 12122019983617 is 71638991022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11939243213041 + 182776770576 = 3455321^2 + 427524^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122019983617 - 2³ = 12122019983609 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122019983627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061009991808 + 6061009991809.

It is an arithmetic number, because the mean of its divisors is an integer number (6061009991809).

Almost surely, 2^{12122019983617} is an apocalyptic number.

It is an amenable number.

12122019983617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122019983617 is an equidigital number, since it uses as much as digits as its factorization.

12122019983617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 12122019983617 in words is "twelve trillion, one hundred twenty-two billion, nineteen million, nine hundred eighty-three thousand, six hundred seventeen".