12012001012191 has 48 divisors (see below), whose sum is σ = 17193506359680. Its totient is φ = 7457364446400.

The previous prime is 12012001012181. The next prime is 12012001012201. The reversal of 12012001012191 is 19121010021021.

It is an interprime number because it is at equal distance from previous prime (12012001012181) and next prime (12012001012201).

It is not a de Polignac number, because 12012001012191 - 2⁹ = 12012001011679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012001012181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14809216 + ... + 15599258.

It is an arithmetic number, because the mean of its divisors is an integer number (358198049160).

Almost surely, 2^{12012001012191} is an apocalyptic number.

12012001012191 is a deficient number, since it is larger than the sum of its proper divisors (5181505347489).

12012001012191 is a wasteful number, since it uses less digits than its factorization.

12012001012191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790324 (or 790305 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 12012001012191 in words is "twelve trillion, twelve billion, one million, twelve thousand, one hundred ninety-one".