13352163221 has 4 divisors (see below), whose sum is σ = 13356727872. Its totient is φ = 13347598572.

The previous prime is 13352163211. The next prime is 13352163263. The reversal of 13352163221 is 12236125331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12236125331 = 1039 ⋅11776829.

It is a cyclic number.

It is not a de Polignac number, because 13352163221 - 2⁶ = 13352163157 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 (13352163211) 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, 2277935 + ... + 2283788.

It is an arithmetic number, because the mean of its divisors is an integer number (3339181968).

Almost surely, 2^13352163221 is an apocalyptic number.

It is an amenable number.

13352163221 is a deficient number, since it is larger than the sum of its proper divisors (4564651).

13352163221 is an equidigital number, since it uses as much as digits as its factorization.

13352163221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564650.

The product of its digits is 6480, while the sum is 29.

Adding to 13352163221 its reverse (12236125331), we get a palindrome (25588288552).

The spelling of 13352163221 in words is "thirteen billion, three hundred fifty-two million, one hundred sixty-three thousand, two hundred twenty-one".