221046223 has 8 divisors (see below), whose sum is σ = 236198160. Its totient is φ = 206133120.

The previous prime is 221046191. The next prime is 221046239. The reversal of 221046223 is 322640122.

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 221046223 - 2⁵ = 221046191 is a prime.

It is a super-2 number, since 2×221046223² = 97722865405131458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221046194 and 221046203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221046253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57793 + ... + 61498.

It is an arithmetic number, because the mean of its divisors is an integer number (29524770).

Almost surely, 2^221046223 is an apocalyptic number.

221046223 is a deficient number, since it is larger than the sum of its proper divisors (15151937).

221046223 is a wasteful number, since it uses less digits than its factorization.

221046223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119417.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 221046223 is about 14867.6233137647. The cubic root of 221046223 is about 604.6365077415.

Adding to 221046223 its reverse (322640122), we get a palindrome (543686345).

The spelling of 221046223 in words is "two hundred twenty-one million, forty-six thousand, two hundred twenty-three".