12223103021 has 4 divisors (see below), whose sum is σ = 12234624444. Its totient is φ = 12211581600.

The previous prime is 12223102999. The next prime is 12223103023. The reversal of 12223103021 is 12030132221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9975015625 + 2248087396 = 99875^2 + 47414^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223103021 - 2¹⁰ = 12223101997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223103023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5759120 + ... + 5761241.

It is an arithmetic number, because the mean of its divisors is an integer number (3058656111).

Almost surely, 2^12223103021 is an apocalyptic number.

It is an amenable number.

12223103021 is a deficient number, since it is larger than the sum of its proper divisors (11521423).

12223103021 is a wasteful number, since it uses less digits than its factorization.

12223103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521422.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12223103021 its reverse (12030132221), we get a palindrome (24253235242).

The spelling of 12223103021 in words is "twelve billion, two hundred twenty-three million, one hundred three thousand, twenty-one".