12232220233 has 4 divisors (see below), whose sum is σ = 12234935188. Its totient is φ = 12229505280.

The previous prime is 12232220183. The next prime is 12232220251. The reversal of 12232220233 is 33202223221.

12232220233 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 an emirpimes, since its reverse is a distinct semiprime: 33202223221 = 29 ⋅1144904249.

It can be written as a sum of positive squares in 2 ways, for example, as 235837449 + 11996382784 = 15357^2 + 109528^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232220233 - 2³³ = 3642285641 is a prime.

It is a super-2 number, since 2×12232220233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232220263) 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, 1350708 + ... + 1359733.

It is an arithmetic number, because the mean of its divisors is an integer number (3058733797).

Almost surely, 2^12232220233 is an apocalyptic number.

It is an amenable number.

12232220233 is a deficient number, since it is larger than the sum of its proper divisors (2714955).

12232220233 is an equidigital number, since it uses as much as digits as its factorization.

12232220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714954.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12232220233 its reverse (33202223221), we get a palindrome (45434443454).

The spelling of 12232220233 in words is "twelve billion, two hundred thirty-two million, two hundred twenty thousand, two hundred thirty-three".