11122000121 has 4 divisors (see below), whose sum is σ = 11124241572. Its totient is φ = 11119758672.

The previous prime is 11122000103. The next prime is 11122000159. The reversal of 11122000121 is 12100022111.

11122000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5634153721 + 5487846400 = 75061^2 + 74080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122000121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122020121) 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 in 3 ways as a sum of consecutive naturals, for example, 1113266 + ... + 1123211.

It is an arithmetic number, because the mean of its divisors is an integer number (2781060393).

Almost surely, 2^11122000121 is an apocalyptic number.

It is an amenable number.

11122000121 is a deficient number, since it is larger than the sum of its proper divisors (2241451).

11122000121 is an equidigital number, since it uses as much as digits as its factorization.

11122000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241450.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11122000121 its reverse (12100022111), we get a palindrome (23222022232).

The spelling of 11122000121 in words is "eleven billion, one hundred twenty-two million, one hundred twenty-one", and thus it is an aban number.