12221012233 has 4 divisors (see below), whose sum is σ = 12221612820. Its totient is φ = 12220411648.

The previous prime is 12221012227. The next prime is 12221012267. The reversal of 12221012233 is 33221012221.

12221012233 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: 33221012221 = 193 ⋅172129597.

It can be written as a sum of positive squares in 2 ways, for example, as 11559905289 + 661106944 = 107517^2 + 25712^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221012233 - 2³³ = 3631077641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221012233.

It is not an unprimeable number, because it can be changed into a prime (12221012633) 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, 268660 + ... + 310837.

It is an arithmetic number, because the mean of its divisors is an integer number (3055403205).

Almost surely, 2^12221012233 is an apocalyptic number.

It is an amenable number.

12221012233 is a deficient number, since it is larger than the sum of its proper divisors (600587).

12221012233 is an equidigital number, since it uses as much as digits as its factorization.

12221012233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600586.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12221012233 its reverse (33221012221), we get a palindrome (45442024454).

The spelling of 12221012233 in words is "twelve billion, two hundred twenty-one million, twelve thousand, two hundred thirty-three".