21222110122303 has 4 divisors (see below), whose sum is σ = 22470469541280. Its totient is φ = 19973750703328.

The previous prime is 21222110122261. The next prime is 21222110122309. The reversal of 21222110122303 is 30322101122212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21222110122303 - 2¹⁷ = 21222109991231 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 (21222110122309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624179709463 + ... + 624179709496.

It is an arithmetic number, because the mean of its divisors is an integer number (5617617385320).

Almost surely, 2^{21222110122303} is an apocalyptic number.

21222110122303 is a deficient number, since it is larger than the sum of its proper divisors (1248359418977).

21222110122303 is a wasteful number, since it uses less digits than its factorization.

21222110122303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248359418976.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21222110122303 its reverse (30322101122212), we get a palindrome (51544211244515).

Subtracting 21222110122303 from its reverse (30322101122212), we obtain a palindrome (9099990999909).

The spelling of 21222110122303 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty-two thousand, three hundred three".