13321222530 has 128 divisors (see below), whose sum is σ = 40364974080. Its totient is φ = 2732970240.

The previous prime is 13321222493. The next prime is 13321222561. The reversal of 13321222530 is 3522212331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13321222530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145992 + ... + 218988.

It is an arithmetic number, because the mean of its divisors is an integer number (315351360).

Almost surely, 2^13321222530 is an apocalyptic number.

13321222530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13321222530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20182487040).

13321222530 is an abundant number, since it is smaller than the sum of its proper divisors (27043751550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13321222530 is a wasteful number, since it uses less digits than its factorization.

13321222530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73104.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 13321222530 its reverse (3522212331), we get a palindrome (16843434861).

The spelling of 13321222530 in words is "thirteen billion, three hundred twenty-one million, two hundred twenty-two thousand, five hundred thirty".