12011121022011 has 16 divisors (see below), whose sum is σ = 16038034933248. Its totient is φ = 7995818952000.

The previous prime is 12011121021997. The next prime is 12011121022063. The reversal of 12011121022011 is 11022012111021.

It is a happy number.

12011121022011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011121022011 - 2³⁷ = 11873682068539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011121022811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4687186 + ... + 6781736.

It is an arithmetic number, because the mean of its divisors is an integer number (1002377183328).

Almost surely, 2^{12011121022011} is an apocalyptic number.

12011121022011 is a deficient number, since it is larger than the sum of its proper divisors (4026913911237).

12011121022011 is a wasteful number, since it uses less digits than its factorization.

12011121022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097322.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011121022011 its reverse (11022012111021), we get a palindrome (23033133133032).

The spelling of 12011121022011 in words is "twelve trillion, eleven billion, one hundred twenty-one million, twenty-two thousand, eleven".