13221133100 has 36 divisors (see below), whose sum is σ = 32788411824. Its totient is φ = 4532959680.

The previous prime is 13221133097. The next prime is 13221133127. The reversal of 13221133100 is 133112231.

It is a super-2 number, since 2×13221133100² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9442967 + ... + 9444366.

Almost surely, 2^13221133100 is an apocalyptic number.

13221133100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221133100 is an abundant number, since it is smaller than the sum of its proper divisors (19567278724).

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

13221133100 is a wasteful number, since it uses less digits than its factorization.

13221133100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18887354 (or 18887347 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13221133100 its reverse (133112231), we get a palindrome (13354245331).

The spelling of 13221133100 in words is "thirteen billion, two hundred twenty-one million, one hundred thirty-three thousand, one hundred".