12110212129 has 2 divisors, whose sum is σ = 12110212130. Its totient is φ = 12110212128.

The previous prime is 12110212099. The next prime is 12110212151. The reversal of 12110212129 is 92121201121.

It is an a-pointer prime, because the next prime (12110212151) can be obtained adding 12110212129 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6315957729 + 5794254400 = 79473^2 + 76120^2 .

It is an emirp because it is prime and its reverse (92121201121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12110212129 - 2⁵ = 12110212097 is a prime.

It is not a weakly prime, because it can be changed into another prime (12110212529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055106064 + 6055106065.

It is an arithmetic number, because the mean of its divisors is an integer number (6055106065).

Almost surely, 2^12110212129 is an apocalyptic number.

It is an amenable number.

12110212129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110212129 is an equidigital number, since it uses as much as digits as its factorization.

12110212129 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 12110212129 in words is "twelve billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-nine".