13221302001 has 4 divisors (see below), whose sum is σ = 17628402672. Its totient is φ = 8814201332.

The previous prime is 13221301997. The next prime is 13221302009. The reversal of 13221302001 is 10020312231.

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.

It is a cyclic number.

It is not a de Polignac number, because 13221302001 - 2² = 13221301997 is a prime.

It is a super-3 number, since 3×13221302001³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13221302009) 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, 2203550331 + ... + 2203550336.

It is an arithmetic number, because the mean of its divisors is an integer number (4407100668).

Almost surely, 2^13221302001 is an apocalyptic number.

It is an amenable number.

13221302001 is a deficient number, since it is larger than the sum of its proper divisors (4407100671).

13221302001 is an equidigital number, since it uses as much as digits as its factorization.

13221302001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407100670.

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

Adding to 13221302001 its reverse (10020312231), we get a palindrome (23241614232).

The spelling of 13221302001 in words is "thirteen billion, two hundred twenty-one million, three hundred two thousand, one".