12012000111989 has 2 divisors, whose sum is σ = 12012000111990. Its totient is φ = 12012000111988.

The previous prime is 12012000111953. The next prime is 12012000112001. The reversal of 12012000111989 is 98911100021021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6760821624964 + 5251178487025 = 2600158^2 + 2291545^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012000111989 - 2⁸ = 12012000111733 is a prime.

It is a super-2 number, since 2×12012000111989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012000116989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006000055994 + 6006000055995.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000055995).

Almost surely, 2^{12012000111989} is an apocalyptic number.

It is an amenable number.

12012000111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012000111989 is an equidigital number, since it uses as much as digits as its factorization.

12012000111989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 12012000111989 in words is "twelve trillion, twelve billion, one hundred eleven thousand, nine hundred eighty-nine".