13221023011999 has 16 divisors (see below), whose sum is σ = 15182364718080. Its totient is φ = 11386280453760.

The previous prime is 13221023011891. The next prime is 13221023012089. The reversal of 13221023011999 is 99911032012231.

It is a cyclic number.

It is not a de Polignac number, because 13221023011999 - 2⁴¹ = 11021999756447 is a prime.

It is a super-2 number, since 2×13221023011999² (a number of 27 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 (13221023015999) 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, 9341202 + ... + 10663024.

It is an arithmetic number, because the mean of its divisors is an integer number (948897794880).

Almost surely, 2^{13221023011999} is an apocalyptic number.

13221023011999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13221023011999 is a deficient number, since it is larger than the sum of its proper divisors (1961341706081).

13221023011999 is a wasteful number, since it uses less digits than its factorization.

13221023011999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369710.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 13221023011999 in words is "thirteen trillion, two hundred twenty-one billion, twenty-three million, eleven thousand, nine hundred ninety-nine".