12223033221 has 16 divisors (see below), whose sum is σ = 19435382784. Its totient is φ = 6680912304.

The previous prime is 12223033217. The next prime is 12223033237. The reversal of 12223033221 is 12233032221.

It is a happy number.

12223033221 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 12223033221 - 2² = 12223033217 is a prime.

It is a super-2 number, since 2×12223033221² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223033211) 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, 12652761 + ... + 12653726.

It is an arithmetic number, because the mean of its divisors is an integer number (1214711424).

Almost surely, 2^12223033221 is an apocalyptic number.

It is an amenable number.

12223033221 is a deficient number, since it is larger than the sum of its proper divisors (7212349563).

12223033221 is a wasteful number, since it uses less digits than its factorization.

12223033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25306520.

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

Adding to 12223033221 its reverse (12233032221), we get a palindrome (24456065442).

The spelling of 12223033221 in words is "twelve billion, two hundred twenty-three million, thirty-three thousand, two hundred twenty-one".