13220321001 has 8 divisors (see below), whose sum is σ = 18103502784. Its totient is φ = 8575343280.

The previous prime is 13220320979. The next prime is 13220321017. The reversal of 13220321001 is 10012302231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13220321001 - 2⁵ = 13220320969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13220322001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59550885 + ... + 59551106.

It is an arithmetic number, because the mean of its divisors is an integer number (2262937848).

Almost surely, 2^13220321001 is an apocalyptic number.

It is an amenable number.

13220321001 is a deficient number, since it is larger than the sum of its proper divisors (4883181783).

13220321001 is a wasteful number, since it uses less digits than its factorization.

13220321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119102031.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13220321001 its reverse (10012302231), we get a palindrome (23232623232).

The spelling of 13220321001 in words is "thirteen billion, two hundred twenty million, three hundred twenty-one thousand, one".