13221031001999 has 8 divisors (see below), whose sum is σ = 13342151468208. Its totient is φ = 13100267298240.

The previous prime is 13221031001977. The next prime is 13221031002001. The reversal of 13221031001999 is 99910013012231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221031001999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221031001929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89116157 + ... + 89264390.

It is an arithmetic number, because the mean of its divisors is an integer number (1667768933526).

Almost surely, 2^{13221031001999} is an apocalyptic number.

13221031001999 is a deficient number, since it is larger than the sum of its proper divisors (121120466209).

13221031001999 is a wasteful number, since it uses less digits than its factorization.

13221031001999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178381225.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 13221031001999 in words is "thirteen trillion, two hundred twenty-one billion, thirty-one million, one thousand, nine hundred ninety-nine".