21200223320333 has 4 divisors (see below), whose sum is σ = 21261319065120. Its totient is φ = 21139127575548.

The previous prime is 21200223320281. The next prime is 21200223320371. The reversal of 21200223320333 is 33302332200212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21200223320333 - 2¹⁰ = 21200223319309 is a prime.

It is a super-2 number, since 2×21200223320333² (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 (21200223326333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30547871873 + ... + 30547872566.

It is an arithmetic number, because the mean of its divisors is an integer number (5315329766280).

Almost surely, 2^{21200223320333} is an apocalyptic number.

It is an amenable number.

21200223320333 is a deficient number, since it is larger than the sum of its proper divisors (61095744787).

21200223320333 is an equidigital number, since it uses as much as digits as its factorization.

21200223320333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61095744786.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21200223320333 its reverse (33302332200212), we get a palindrome (54502555520545).

The spelling of 21200223320333 in words is "twenty-one trillion, two hundred billion, two hundred twenty-three million, three hundred twenty thousand, three hundred thirty-three".