13221540005 has 8 divisors (see below), whose sum is σ = 15871857792. Its totient is φ = 10573225488.

The previous prime is 13221540001. The next prime is 13221540011. The reversal of 13221540005 is 50004512231.

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

It is a cyclic number.

It is not a de Polignac number, because 13221540005 - 2² = 13221540001 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 (13221540001) 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, 486257 + ... + 512726.

It is an arithmetic number, because the mean of its divisors is an integer number (1983982224).

Almost surely, 2^13221540005 is an apocalyptic number.

It is an amenable number.

13221540005 is a deficient number, since it is larger than the sum of its proper divisors (2650317787).

13221540005 is an equidigital number, since it uses as much as digits as its factorization.

13221540005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001635.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 13221540005 in words is "thirteen billion, two hundred twenty-one million, five hundred forty thousand, five".