12120012233 has 4 divisors (see below), whose sum is σ = 13851442560. Its totient is φ = 10388581908.

The previous prime is 12120012227. The next prime is 12120012241. The reversal of 12120012233 is 33221002121.

12120012233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33221002121 = 1531 ⋅21698891.

It is a cyclic number.

It is not a de Polignac number, because 12120012233 - 2¹⁸ = 12119750089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120002233) 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 3 ways as a sum of consecutive naturals, for example, 865715153 + ... + 865715166.

It is an arithmetic number, because the mean of its divisors is an integer number (3462860640).

Almost surely, 2^12120012233 is an apocalyptic number.

It is an amenable number.

12120012233 is a deficient number, since it is larger than the sum of its proper divisors (1731430327).

12120012233 is an equidigital number, since it uses as much as digits as its factorization.

12120012233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731430326.

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

Adding to 12120012233 its reverse (33221002121), we get a palindrome (45341014354).

The spelling of 12120012233 in words is "twelve billion, one hundred twenty million, twelve thousand, two hundred thirty-three".