13221203099 has 12 divisors (see below), whose sum is σ = 14390664696. Its totient is φ = 12140923392.

The previous prime is 13221203087. The next prime is 13221203117. The reversal of 13221203099 is 99030212231.

It is not a de Polignac number, because 13221203099 - 2⁸ = 13221202843 is a prime.

It is a super-2 number, since 2×13221203099² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221203899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170057 + ... + 235290.

It is an arithmetic number, because the mean of its divisors is an integer number (1199222058).

Almost surely, 2^13221203099 is an apocalyptic number.

13221203099 is a deficient number, since it is larger than the sum of its proper divisors (1169461597).

13221203099 is a wasteful number, since it uses less digits than its factorization.

13221203099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405566 (or 405553 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 13221203099 in words is "thirteen billion, two hundred twenty-one million, two hundred three thousand, ninety-nine".