221342223 has 8 divisors (see below), whose sum is σ = 301402368. Its totient is φ = 144421784.

The previous prime is 221342203. The next prime is 221342299. The reversal of 221342223 is 322243122.

221342223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221342223 - 2⁹ = 221341711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221342223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221342203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784761 + ... + 785042.

It is an arithmetic number, because the mean of its divisors is an integer number (37675296).

Almost surely, 2^221342223 is an apocalyptic number.

221342223 is a deficient number, since it is larger than the sum of its proper divisors (80060145).

221342223 is a wasteful number, since it uses less digits than its factorization.

221342223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569853.

The product of its digits is 1152, while the sum is 21.

The square root of 221342223 is about 14877.5744998975. The cubic root of 221342223 is about 604.9062742134.

Adding to 221342223 its reverse (322243122), we get a palindrome (543585345).

The spelling of 221342223 in words is "two hundred twenty-one million, three hundred forty-two thousand, two hundred twenty-three".