11220112129 has 2 divisors, whose sum is σ = 11220112130. Its totient is φ = 11220112128.

The previous prime is 11220112117. The next prime is 11220112139. The reversal of 11220112129 is 92121102211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9478969600 + 1741142529 = 97360^2 + 41727^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220112129 - 2¹¹ = 11220110081 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220112139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610056064 + 5610056065.

It is an arithmetic number, because the mean of its divisors is an integer number (5610056065).

Almost surely, 2^11220112129 is an apocalyptic number.

It is an amenable number.

11220112129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220112129 is an equidigital number, since it uses as much as digits as its factorization.

11220112129 is an evil number, because the sum of its binary digits is even.

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

The spelling of 11220112129 in words is "eleven billion, two hundred twenty million, one hundred twelve thousand, one hundred twenty-nine".