12000212011129 has 2 divisors, whose sum is σ = 12000212011130. Its totient is φ = 12000212011128.

The previous prime is 12000212011057. The next prime is 12000212011147. The reversal of 12000212011129 is 92111021200021.

12000212011129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8917079877904 + 3083132133225 = 2986148^2 + 1755885^2 .

It is an emirp because it is prime and its reverse (92111021200021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000212011129 - 2²⁵ = 12000178456697 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000212011189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000106005564 + 6000106005565.

It is an arithmetic number, because the mean of its divisors is an integer number (6000106005565).

Almost surely, 2^{12000212011129} is an apocalyptic number.

It is an amenable number.

12000212011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000212011129 is an equidigital number, since it uses as much as digits as its factorization.

12000212011129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 12000212011129 in words is "twelve trillion, two hundred twelve million, eleven thousand, one hundred twenty-nine".