21222322333 has 4 divisors (see below), whose sum is σ = 21906913408. Its totient is φ = 20537731260.

The previous prime is 21222322321. The next prime is 21222322339. The reversal of 21222322333 is 33322322212.

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 not a de Polignac number, because 21222322333 - 2⁵ = 21222322301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21222322298 and 21222322307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222322339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342295491 + ... + 342295552.

It is an arithmetic number, because the mean of its divisors is an integer number (5476728352).

Almost surely, 2^21222322333 is an apocalyptic number.

It is an amenable number.

21222322333 is a deficient number, since it is larger than the sum of its proper divisors (684591075).

21222322333 is an equidigital number, since it uses as much as digits as its factorization.

21222322333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684591074.

The product of its digits is 5184, while the sum is 25.

Adding to 21222322333 its reverse (33322322212), we get a palindrome (54544644545).

The spelling of 21222322333 in words is "twenty-one billion, two hundred twenty-two million, three hundred twenty-two thousand, three hundred thirty-three".