12221302233 has 32 divisors (see below), whose sum is σ = 19066955776. Its totient is φ = 6817281408.

The previous prime is 12221302231. The next prime is 12221302243. The reversal of 12221302233 is 33220312221.

It is a happy number.

12221302233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221302233 - 2¹ = 12221302231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221302231) 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 31 ways as a sum of consecutive naturals, for example, 2387685 + ... + 2392797.

It is an arithmetic number, because the mean of its divisors is an integer number (595842368).

Almost surely, 2^12221302233 is an apocalyptic number.

It is an amenable number.

12221302233 is a deficient number, since it is larger than the sum of its proper divisors (6845653543).

12221302233 is a wasteful number, since it uses less digits than its factorization.

12221302233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12221302233 its reverse (33220312221), we get a palindrome (45441614454).

The spelling of 12221302233 in words is "twelve billion, two hundred twenty-one million, three hundred two thousand, two hundred thirty-three".