13323322221 has 24 divisors (see below), whose sum is σ = 19666741920. Its totient is φ = 8016618720.

The previous prime is 13323322151. The next prime is 13323322237. The reversal of 13323322221 is 12222332331.

It is not a de Polignac number, because 13323322221 - 2⁹ = 13323321709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13323322191 and 13323322200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323322241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81570 + ... + 182483.

It is an arithmetic number, because the mean of its divisors is an integer number (819447580).

Almost surely, 2^13323322221 is an apocalyptic number.

13323322221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13323322221 is a deficient number, since it is larger than the sum of its proper divisors (6343419699).

13323322221 is a wasteful number, since it uses less digits than its factorization.

13323322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264217 (or 264206 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 13323322221 its reverse (12222332331), we get a palindrome (25545654552).

The spelling of 13323322221 in words is "thirteen billion, three hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty-one".