13221001122 has 96 divisors (see below), whose sum is σ = 31133755392. Its totient is φ = 3666384000.

The previous prime is 13221001121. The next prime is 13221001141. The reversal of 13221001122 is 22110012231.

It is not an unprimeable number, because it can be changed into a prime (13221001121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19132797 + ... + 19133487.

It is an arithmetic number, because the mean of its divisors is an integer number (324309952).

Almost surely, 2^13221001122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13221001122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15566877696).

13221001122 is an abundant number, since it is smaller than the sum of its proper divisors (17912754270).

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

13221001122 is a wasteful number, since it uses less digits than its factorization.

13221001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13221001122 its reverse (22110012231), we get a palindrome (35331013353).

The spelling of 13221001122 in words is "thirteen billion, two hundred twenty-one million, one thousand, one hundred twenty-two".