13221332321011 has 4 divisors (see below), whose sum is σ = 13274006952024. Its totient is φ = 13168657690000.

The previous prime is 13221332321009. The next prime is 13221332321023. The reversal of 13221332321011 is 11012323312231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13221332321011 - 2¹ = 13221332321009 is a prime.

It is a super-2 number, since 2×13221332321011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221332321081) 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, 26337315130 + ... + 26337315631.

It is an arithmetic number, because the mean of its divisors is an integer number (3318501738006).

Almost surely, 2^{13221332321011} is an apocalyptic number.

13221332321011 is a deficient number, since it is larger than the sum of its proper divisors (52674631013).

13221332321011 is an equidigital number, since it uses as much as digits as its factorization.

13221332321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52674631012.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13221332321011 its reverse (11012323312231), we get a palindrome (24233655633242).

The spelling of 13221332321011 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty-two million, three hundred twenty-one thousand, eleven".