12111202221029 has 2 divisors, whose sum is σ = 12111202221030. Its totient is φ = 12111202221028.

The previous prime is 12111202220983. The next prime is 12111202221077. The reversal of 12111202221029 is 92012220211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8091618308929 + 4019583912100 = 2844577^2 + 2004890^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111202221029 - 2²⁰ = 12111201172453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12111202220989 and 12111202221007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111202229029) 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, 6055601110514 + 6055601110515.

It is an arithmetic number, because the mean of its divisors is an integer number (6055601110515).

Almost surely, 2^{12111202221029} is an apocalyptic number.

It is an amenable number.

12111202221029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111202221029 is an equidigital number, since it uses as much as digits as its factorization.

12111202221029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 12111202221029 in words is "twelve trillion, one hundred eleven billion, two hundred two million, two hundred twenty-one thousand, twenty-nine".