221303121022223 has 4 divisors (see below), whose sum is σ = 226700758120368. Its totient is φ = 215905483924080.

The previous prime is 221303121022213. The next prime is 221303121022237. The reversal of 221303121022223 is 322220121303122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221303121022223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221303121022192 and 221303121022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303121022213) 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, 2698818549011 + ... + 2698818549092.

It is an arithmetic number, because the mean of its divisors is an integer number (56675189530092).

Almost surely, 2^{221303121022223} is an apocalyptic number.

221303121022223 is a deficient number, since it is larger than the sum of its proper divisors (5397637098145).

221303121022223 is an equidigital number, since it uses as much as digits as its factorization.

221303121022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397637098144.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 221303121022223 its reverse (322220121303122), we get a palindrome (543523242325345).

The spelling of 221303121022223 in words is "two hundred twenty-one trillion, three hundred three billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-three".