12332222221 has 4 divisors (see below), whose sum is σ = 13453333344. Its totient is φ = 11211111100.

The previous prime is 12332222219. The next prime is 12332222257. The reversal of 12332222221 is 12222223321.

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.

It is a cyclic number.

It is not a de Polignac number, because 12332222221 - 2¹ = 12332222219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12332222192 and 12332222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12332222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560555545 + ... + 560555566.

It is an arithmetic number, because the mean of its divisors is an integer number (3363333336).

Almost surely, 2^12332222221 is an apocalyptic number.

12332222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12332222221 is a deficient number, since it is larger than the sum of its proper divisors (1121111123).

12332222221 is a wasteful number, since it uses less digits than its factorization.

12332222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121111122.

The product of its digits is 1152, while the sum is 22.

Adding to 12332222221 its reverse (12222223321), we get a palindrome (24554445542).

It can be divided in two parts, 12 and 332222221, that added together give a palindrome (332222233).

The spelling of 12332222221 in words is "twelve billion, three hundred thirty-two million, two hundred twenty-two thousand, two hundred twenty-one".