21333210199 has 16 divisors (see below), whose sum is σ = 24669092160. Its totient is φ = 18069638400.

The previous prime is 21333210193. The next prime is 21333210209. The reversal of 21333210199 is 99101233312.

It is a cyclic number.

It is not a de Polignac number, because 21333210199 - 2⁹ = 21333209687 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 (21333210193) 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, 1175317 + ... + 1193329.

It is an arithmetic number, because the mean of its divisors is an integer number (1541818260).

Almost surely, 2^21333210199 is an apocalyptic number.

21333210199 is a deficient number, since it is larger than the sum of its proper divisors (3335881961).

21333210199 is a wasteful number, since it uses less digits than its factorization.

21333210199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 21333210199 in words is "twenty-one billion, three hundred thirty-three million, two hundred ten thousand, one hundred ninety-nine".