12122101021399 has 2 divisors, whose sum is σ = 12122101021400. Its totient is φ = 12122101021398.

The previous prime is 12122101021369. The next prime is 12122101021411. The reversal of 12122101021399 is 99312010122121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122101021399 - 2³¹ = 12119953537751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122101021369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061050510699 + 6061050510700.

It is an arithmetic number, because the mean of its divisors is an integer number (6061050510700).

Almost surely, 2^{12122101021399} is an apocalyptic number.

12122101021399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122101021399 is an equidigital number, since it uses as much as digits as its factorization.

12122101021399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 12122101021399 in words is "twelve trillion, one hundred twenty-two billion, one hundred one million, twenty-one thousand, three hundred ninety-nine".