13221200109 has 16 divisors (see below), whose sum is σ = 19022360000. Its totient is φ = 8119806336.

The previous prime is 13221200099. The next prime is 13221200117. The reversal of 13221200109 is 90100212231.

It is not a de Polignac number, because 13221200109 - 2¹² = 13221196013 is a prime.

It is a super-2 number, since 2×13221200109² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221200119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320224 + ... + 359145.

It is an arithmetic number, because the mean of its divisors is an integer number (1188897500).

Almost surely, 2^13221200109 is an apocalyptic number.

It is an amenable number.

13221200109 is a deficient number, since it is larger than the sum of its proper divisors (5801159891).

13221200109 is a wasteful number, since it uses less digits than its factorization.

13221200109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679884.

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 13221200109 in words is "thirteen billion, two hundred twenty-one million, two hundred thousand, one hundred nine".