21885920118199 has 2 divisors, whose sum is σ = 21885920118200. Its totient is φ = 21885920118198.

The previous prime is 21885920118193. The next prime is 21885920118269. The reversal of 21885920118199 is 99181102958812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21885920118199 - 2³ = 21885920118191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21885920118199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21885920118191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10942960059099 + 10942960059100.

It is an arithmetic number, because the mean of its divisors is an integer number (10942960059100).

Almost surely, 2^{21885920118199} is an apocalyptic number.

21885920118199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21885920118199 is an equidigital number, since it uses as much as digits as its factorization.

21885920118199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 64.

The spelling of 21885920118199 in words is "twenty-one trillion, eight hundred eighty-five billion, nine hundred twenty million, one hundred eighteen thousand, one hundred ninety-nine".