12000221133 has 4 divisors (see below), whose sum is σ = 16000294848. Its totient is φ = 8000147420.

The previous prime is 12000221131. The next prime is 12000221183. The reversal of 12000221133 is 33112200021.

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 12000221133 - 2¹ = 12000221131 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000221131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000036853 + ... + 2000036858.

It is an arithmetic number, because the mean of its divisors is an integer number (4000073712).

Almost surely, 2^12000221133 is an apocalyptic number.

It is an amenable number.

12000221133 is a deficient number, since it is larger than the sum of its proper divisors (4000073715).

12000221133 is an equidigital number, since it uses as much as digits as its factorization.

12000221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000073714.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12000221133 its reverse (33112200021), we get a palindrome (45112421154).

The spelling of 12000221133 in words is "twelve billion, two hundred twenty-one thousand, one hundred thirty-three".