12011133000021 has 4 divisors (see below), whose sum is σ = 16014844000032. Its totient is φ = 8007422000012.

The previous prime is 12011133000007. The next prime is 12011133000071. The reversal of 12011133000021 is 12000033111021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011133000021 - 2⁷ = 12011132999893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011133000071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001855500001 + ... + 2001855500006.

It is an arithmetic number, because the mean of its divisors is an integer number (4003711000008).

Almost surely, 2^{12011133000021} is an apocalyptic number.

It is an amenable number.

12011133000021 is a deficient number, since it is larger than the sum of its proper divisors (4003711000011).

12011133000021 is an equidigital number, since it uses as much as digits as its factorization.

12011133000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003711000010.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12011133000021 its reverse (12000033111021), we get a palindrome (24011166111042).

The spelling of 12011133000021 in words is "twelve trillion, eleven billion, one hundred thirty-three million, twenty-one", and thus it is an aban number.