221514223 has 8 divisors (see below), whose sum is σ = 253435680. Its totient is φ = 189661920.

The previous prime is 221514203. The next prime is 221514247. The reversal of 221514223 is 322415122.

It is a happy number.

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-221514223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221514194 and 221514203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221514203) 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, 10228 + ... + 23401.

It is an arithmetic number, because the mean of its divisors is an integer number (31679460).

Almost surely, 2^221514223 is an apocalyptic number.

221514223 is a deficient number, since it is larger than the sum of its proper divisors (31921457).

221514223 is an equidigital number, since it uses as much as digits as its factorization.

221514223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34577.

The product of its digits is 960, while the sum is 22.

The square root of 221514223 is about 14883.3538894968. The cubic root of 221514223 is about 605.0629199411.

Adding to 221514223 its reverse (322415122), we get a palindrome (543929345).

The spelling of 221514223 in words is "two hundred twenty-one million, five hundred fourteen thousand, two hundred twenty-three".