12012122120989 has 2 divisors, whose sum is σ = 12012122120990. Its totient is φ = 12012122120988.

The previous prime is 12012122120983. The next prime is 12012122121023. The reversal of 12012122120989 is 98902122121021.

12012122120989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9754065922500 + 2258056198489 = 3123150^2 + 1502683^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012122120989 - 2³ = 12012122120981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012122120981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006061060494 + 6006061060495.

It is an arithmetic number, because the mean of its divisors is an integer number (6006061060495).

Almost surely, 2^{12012122120989} is an apocalyptic number.

It is an amenable number.

12012122120989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012122120989 is an equidigital number, since it uses as much as digits as its factorization.

12012122120989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 12012122120989 in words is "twelve trillion, twelve billion, one hundred twenty-two million, one hundred twenty thousand, nine hundred eighty-nine".