13221333132 has 48 divisors (see below), whose sum is σ = 35394132480. Its totient is φ = 3762819072.

The previous prime is 13221333121. The next prime is 13221333161. The reversal of 13221333132 is 23133312231.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284632 + ... + 327807.

It is an arithmetic number, because the mean of its divisors is an integer number (737377760).

Almost surely, 2^13221333132 is an apocalyptic number.

13221333132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13221333132 is an abundant number, since it is smaller than the sum of its proper divisors (22172799348).

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

13221333132 is a wasteful number, since it uses less digits than its factorization.

13221333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612710 (or 612708 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 13221333132 its reverse (23133312231), we get a palindrome (36354645363).

The spelling of 13221333132 in words is "thirteen billion, two hundred twenty-one million, three hundred thirty-three thousand, one hundred thirty-two".