13221162005 has 8 divisors (see below), whose sum is σ = 15878374272. Its totient is φ = 10568276368.

The previous prime is 13221162001. The next prime is 13221162023. The reversal of 13221162005 is 50026112231.

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 13221162005 - 2² = 13221162001 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 (13221162001) 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, 1074929 + ... + 1087158.

It is an arithmetic number, because the mean of its divisors is an integer number (1984796784).

Almost surely, 2^13221162005 is an apocalyptic number.

It is an amenable number.

13221162005 is a deficient number, since it is larger than the sum of its proper divisors (2657212267).

13221162005 is a wasteful number, since it uses less digits than its factorization.

13221162005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163315.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13221162005 its reverse (50026112231), we get a palindrome (63247274236).

The spelling of 13221162005 in words is "thirteen billion, two hundred twenty-one million, one hundred sixty-two thousand, five".