13221233021330 has 16 divisors (see below), whose sum is σ = 25198114699800. Its totient is φ = 4977405372672.

The previous prime is 13221233021323. The next prime is 13221233021357. The reversal of 13221233021330 is 3312033212231.

It can be written as a sum of positive squares in 4 ways, for example, as 13207751257009 + 13481764321 = 3634247^2 + 116111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13221233021330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38885979305 + ... + 38885979644.

Almost surely, 2^{13221233021330} is an apocalyptic number.

13221233021330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221233021330 is a deficient number, since it is larger than the sum of its proper divisors (11976881678470).

13221233021330 is a wasteful number, since it uses less digits than its factorization.

13221233021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77771958973.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13221233021330 its reverse (3312033212231), we get a palindrome (16533266233561).

The spelling of 13221233021330 in words is "thirteen trillion, two hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, three hundred thirty".