21331301219999 has 8 divisors (see below), whose sum is σ = 21334907550000. Its totient is φ = 21327695145792.

The previous prime is 21331301219953. The next prime is 21331301220017. The reversal of 21331301219999 is 99991210313312.

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

It is a cyclic number.

It is not a de Polignac number, because 21331301219999 - 2²⁸ = 21331032784543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21331301219999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21331301219909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235012877 + ... + 235103625.

It is an arithmetic number, because the mean of its divisors is an integer number (2666863443750).

Almost surely, 2^{21331301219999} is an apocalyptic number.

21331301219999 is a deficient number, since it is larger than the sum of its proper divisors (3606330001).

21331301219999 is an equidigital number, since it uses as much as digits as its factorization.

21331301219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127897.

The product of its (nonzero) digits is 708588, while the sum is 53.

The spelling of 21331301219999 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred one million, two hundred nineteen thousand, nine hundred ninety-nine".