221334223 has 8 divisors (see below), whose sum is σ = 241675776. Its totient is φ = 201029400.

The previous prime is 221334209. The next prime is 221334257. The reversal of 221334223 is 322433122.

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

It is a de Polignac number, because none of the positive numbers 2^k-221334223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221334194 and 221334203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221334023) 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, 4290 + ... + 21472.

It is an arithmetic number, because the mean of its divisors is an integer number (30209472).

Almost surely, 2^221334223 is an apocalyptic number.

221334223 is a deficient number, since it is larger than the sum of its proper divisors (20341553).

221334223 is a wasteful number, since it uses less digits than its factorization.

221334223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18365.

The product of its digits is 1728, while the sum is 22.

The square root of 221334223 is about 14877.3056364383. The cubic root of 221334223 is about 604.8989863909.

Adding to 221334223 its reverse (322433122), we get a palindrome (543767345).

The spelling of 221334223 in words is "two hundred twenty-one million, three hundred thirty-four thousand, two hundred twenty-three".