13223110221 has 16 divisors (see below), whose sum is σ = 20742134400. Its totient is φ = 8296853184.

The previous prime is 13223110189. The next prime is 13223110301. The reversal of 13223110221 is 12201132231.

13223110221 is a `hidden beast` number, since 132 + 2 + 311 + 0 + 221 = 666.

It is not a de Polignac number, because 13223110221 - 2⁵ = 13223110189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13223110194 and 13223110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223110321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14403801 + ... + 14404718.

It is an arithmetic number, because the mean of its divisors is an integer number (1296383400).

Almost surely, 2^13223110221 is an apocalyptic number.

It is an amenable number.

13223110221 is a deficient number, since it is larger than the sum of its proper divisors (7519024179).

13223110221 is a wasteful number, since it uses less digits than its factorization.

13223110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28808545 (or 28808539 counting only the distinct ones).

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

Adding to 13223110221 its reverse (12201132231), we get a palindrome (25424242452).

The spelling of 13223110221 in words is "thirteen billion, two hundred twenty-three million, one hundred ten thousand, two hundred twenty-one".