12101211212939 has 2 divisors, whose sum is σ = 12101211212940. Its totient is φ = 12101211212938.

The previous prime is 12101211212933. The next prime is 12101211213127. The reversal of 12101211212939 is 93921211210121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12101211212939 - 2⁸ = 12101211212683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101211212899 and 12101211212908.

It is not a weakly prime, because it can be changed into another prime (12101211212933) 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, 6050605606469 + 6050605606470.

It is an arithmetic number, because the mean of its divisors is an integer number (6050605606470).

Almost surely, 2^{12101211212939} is an apocalyptic number.

12101211212939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101211212939 is an equidigital number, since it uses as much as digits as its factorization.

12101211212939 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 35.

The spelling of 12101211212939 in words is "twelve trillion, one hundred one billion, two hundred eleven million, two hundred twelve thousand, nine hundred thirty-nine".