12001322011 has 32 divisors (see below), whose sum is σ = 14392828800. Its totient is φ = 9996940800.

The previous prime is 12001321999. The next prime is 12001322017. The reversal of 12001322011 is 11022310021.

12001322011 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 12001322011 - 2⁷ = 12001321883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001321982 and 12001322000.

It is not an unprimeable number, because it can be changed into a prime (12001322017) 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 31 ways as a sum of consecutive naturals, for example, 3950185 + ... + 3953221.

It is an arithmetic number, because the mean of its divisors is an integer number (449775900).

Almost surely, 2^12001322011 is an apocalyptic number.

12001322011 is a deficient number, since it is larger than the sum of its proper divisors (2391506789).

12001322011 is an equidigital number, since it uses as much as digits as its factorization.

12001322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12001322011 its reverse (11022310021), we get a palindrome (23023632032).

The spelling of 12001322011 in words is "twelve billion, one million, three hundred twenty-two thousand, eleven".