12221321103 has 6 divisors (see below), whose sum is σ = 17653019384. Its totient is φ = 8147547396.

The previous prime is 12221321081. The next prime is 12221321107. The reversal of 12221321103 is 30112312221.

It is not a de Polignac number, because 12221321103 - 2⁵ = 12221321071 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 (12221321107) 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 5 ways as a sum of consecutive naturals, for example, 678962275 + ... + 678962292.

Almost surely, 2^12221321103 is an apocalyptic number.

12221321103 is a deficient number, since it is larger than the sum of its proper divisors (5431698281).

12221321103 is a wasteful number, since it uses less digits than its factorization.

12221321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357924573 (or 1357924570 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12221321103 its reverse (30112312221), we get a palindrome (42333633324).

The spelling of 12221321103 in words is "twelve billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred three".