12011211029 has 2 divisors, whose sum is σ = 12011211030. Its totient is φ = 12011211028.

The previous prime is 12011211013. The next prime is 12011211049. The reversal of 12011211029 is 92011211021.

12011211029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12011211049) can be obtained adding 12011211029 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10500100900 + 1511110129 = 102470^2 + 38873^2 .

It is an emirp because it is prime and its reverse (92011211021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011211029 - 2⁴ = 12011211013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12011211029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011211049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005605514 + 6005605515.

It is an arithmetic number, because the mean of its divisors is an integer number (6005605515).

Almost surely, 2^12011211029 is an apocalyptic number.

It is an amenable number.

12011211029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011211029 is an equidigital number, since it uses as much as digits as its factorization.

12011211029 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 20.

The spelling of 12011211029 in words is "twelve billion, eleven million, two hundred eleven thousand, twenty-nine".