13221330222118 has 4 divisors (see below), whose sum is σ = 19831995333180. Its totient is φ = 6610665111058.

The previous prime is 13221330222017. The next prime is 13221330222119. The reversal of 13221330222118 is 81122203312231.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13221330222118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221330222119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305332555528 + ... + 3305332555531.

It is an arithmetic number, because the mean of its divisors is an integer number (4957998833295).

Almost surely, 2^{13221330222118} is an apocalyptic number.

13221330222118 is a deficient number, since it is larger than the sum of its proper divisors (6610665111062).

13221330222118 is an equidigital number, since it uses as much as digits as its factorization.

13221330222118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610665111061.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 13221330222118 its reverse (81122203312231), we get a palindrome (94343533534349).

The spelling of 13221330222118 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, one hundred eighteen".