12031220033 has 16 divisors (see below), whose sum is σ = 14864833920. Its totient is φ = 9505662336.

The previous prime is 12031220027. The next prime is 12031220039. The reversal of 12031220033 is 33002213021.

12031220033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12031220027) and next prime (12031220039).

It is a cyclic number.

It is not a de Polignac number, because 12031220033 - 2⁴ = 12031220017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031219993 and 12031220020.

It is not an unprimeable number, because it can be changed into a prime (12031220039) 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 15 ways as a sum of consecutive naturals, for example, 1217516 + ... + 1227357.

It is an arithmetic number, because the mean of its divisors is an integer number (929052120).

Almost surely, 2^12031220033 is an apocalyptic number.

It is an amenable number.

12031220033 is a deficient number, since it is larger than the sum of its proper divisors (2833613887).

12031220033 is a wasteful number, since it uses less digits than its factorization.

12031220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444936.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12031220033 its reverse (33002213021), we get a palindrome (45033433054).

The spelling of 12031220033 in words is "twelve billion, thirty-one million, two hundred twenty thousand, thirty-three".