13221102223123 has 12 divisors (see below), whose sum is σ = 13554547244640. Its totient is φ = 12895672883856.

The previous prime is 13221102223103. The next prime is 13221102223129. The reversal of 13221102223123 is 32132220112231.

13221102223123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13221102223123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221102223129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3643036 + ... + 6301897.

It is an arithmetic number, because the mean of its divisors is an integer number (1129545603720).

Almost surely, 2^{13221102223123} is an apocalyptic number.

13221102223123 is a deficient number, since it is larger than the sum of its proper divisors (333445021517).

13221102223123 is an frugal number, since it uses more digits than its factorization.

13221102223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9945738 (or 9945695 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13221102223123 its reverse (32132220112231), we get a palindrome (45353322335354).

The spelling of 13221102223123 in words is "thirteen trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty-three thousand, one hundred twenty-three".