2001212012159 has 2 divisors, whose sum is σ = 2001212012160. Its totient is φ = 2001212012158.

The previous prime is 2001212012089. The next prime is 2001212012227. The reversal of 2001212012159 is 9512102121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001212012159 - 2²⁸ = 2000943576703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001212012659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000606006079 + 1000606006080.

It is an arithmetic number, because the mean of its divisors is an integer number (1000606006080).

Almost surely, 2^{2001212012159} is an apocalyptic number.

2001212012159 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001212012159 is an equidigital number, since it uses as much as digits as its factorization.

2001212012159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 2001212012159 in words is "two trillion, one billion, two hundred twelve million, twelve thousand, one hundred fifty-nine".