12012201271129 has 2 divisors, whose sum is σ = 12012201271130. Its totient is φ = 12012201271128.

The previous prime is 12012201271121. The next prime is 12012201271151. The reversal of 12012201271129 is 92117210221021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10615899822025 + 1396301449104 = 3258205^2 + 1181652^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012201271129 - 2³ = 12012201271121 is a prime.

It is a super-2 number, since 2×12012201271129² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12012201271129.

It is not a weakly prime, because it can be changed into another prime (12012201271121) 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, 6006100635564 + 6006100635565.

It is an arithmetic number, because the mean of its divisors is an integer number (6006100635565).

Almost surely, 2^{12012201271129} is an apocalyptic number.

It is an amenable number.

12012201271129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012201271129 is an equidigital number, since it uses as much as digits as its factorization.

12012201271129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 12012201271129 in words is "twelve trillion, twelve billion, two hundred one million, two hundred seventy-one thousand, one hundred twenty-nine".