12033222011 has 4 divisors (see below), whose sum is σ = 12036700272. Its totient is φ = 12029743752.

The previous prime is 12033221989. The next prime is 12033222017. The reversal of 12033222011 is 11022233021.

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

It is a cyclic number.

It is not a de Polignac number, because 12033222011 - 2³⁰ = 10959480187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12033222017) 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, 1733936 + ... + 1740861.

It is an arithmetic number, because the mean of its divisors is an integer number (3009175068).

Almost surely, 2^12033222011 is an apocalyptic number.

12033222011 is a deficient number, since it is larger than the sum of its proper divisors (3478261).

12033222011 is an equidigital number, since it uses as much as digits as its factorization.

12033222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478260.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12033222011 its reverse (11022233021), we get a palindrome (23055455032).

The spelling of 12033222011 in words is "twelve billion, thirty-three million, two hundred twenty-two thousand, eleven".