13221221332330 has 64 divisors (see below), whose sum is σ = 26205974986752. Its totient is φ = 4762481106240.

The previous prime is 13221221332301. The next prime is 13221221332357. The reversal of 13221221332330 is 3323312212231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272651347 + ... + 272699833.

It is an arithmetic number, because the mean of its divisors is an integer number (409468359168).

Almost surely, 2^{13221221332330} is an apocalyptic number.

13221221332330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221221332330 is a deficient number, since it is larger than the sum of its proper divisors (12984753654422).

13221221332330 is a wasteful number, since it uses less digits than its factorization.

13221221332330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71779.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 13221221332330 its reverse (3323312212231), we get a palindrome (16544533544561).

The spelling of 13221221332330 in words is "thirteen trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred thirty".