12011002002011 has 4 divisors (see below), whose sum is σ = 12011051932032. Its totient is φ = 12010952071992.

The previous prime is 12011002001987. The next prime is 12011002002053. The reversal of 12011002002011 is 11020020011021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011002002011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011002001983 and 12011002002001.

It is not an unprimeable number, because it can be changed into a prime (12011002004011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24602420 + ... + 25085873.

It is an arithmetic number, because the mean of its divisors is an integer number (3002762983008).

Almost surely, 2^{12011002002011} is an apocalyptic number.

12011002002011 is a deficient number, since it is larger than the sum of its proper divisors (49930021).

12011002002011 is an equidigital number, since it uses as much as digits as its factorization.

12011002002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49930020.

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

Adding to 12011002002011 its reverse (11020020011021), we get a palindrome (23031022013032).

The spelling of 12011002002011 in words is "twelve trillion, eleven billion, two million, two thousand, eleven".