12011021002091 has 2 divisors, whose sum is σ = 12011021002092. Its totient is φ = 12011021002090.

The previous prime is 12011021001989. The next prime is 12011021002093. The reversal of 12011021002091 is 19020012011021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011021002091 - 2²⁶ = 12010953893227 is a prime.

It is a super-3 number, since 3×12011021002091³ (a number of 40 digits) contains 333 as substring.

Together with 12011021002093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12011021002093) 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, 6005510501045 + 6005510501046.

It is an arithmetic number, because the mean of its divisors is an integer number (6005510501046).

Almost surely, 2^{12011021002091} is an apocalyptic number.

12011021002091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011021002091 is an equidigital number, since it uses as much as digits as its factorization.

12011021002091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12011021002091 in words is "twelve trillion, eleven billion, twenty-one million, two thousand, ninety-one".