12101200129 has 2 divisors, whose sum is σ = 12101200130. Its totient is φ = 12101200128.

The previous prime is 12101200123. The next prime is 12101200159. The reversal of 12101200129 is 92100210121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12026412225 + 74787904 = 109665^2 + 8648^2 .

It is an emirp because it is prime and its reverse (92100210121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12101200129 - 2¹³ = 12101191937 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101200123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050600064 + 6050600065.

It is an arithmetic number, because the mean of its divisors is an integer number (6050600065).

Almost surely, 2^12101200129 is an apocalyptic number.

It is an amenable number.

12101200129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101200129 is an equidigital number, since it uses as much as digits as its factorization.

12101200129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 12101200129 in words is "twelve billion, one hundred one million, two hundred thousand, one hundred twenty-nine".