221010223 has 8 divisors (see below), whose sum is σ = 265877120. Its totient is φ = 179466840.

The previous prime is 221010187. The next prime is 221010241. The reversal of 221010223 is 322010122.

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

It is not a de Polignac number, because 221010223 - 2¹³ = 221002031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010263) 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, 830733 + ... + 830998.

It is an arithmetic number, because the mean of its divisors is an integer number (33234640).

Almost surely, 2^221010223 is an apocalyptic number.

221010223 is a deficient number, since it is larger than the sum of its proper divisors (44866897).

221010223 is a wasteful number, since it uses less digits than its factorization.

221010223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661757.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221010223 is about 14866.4125800410. The cubic root of 221010223 is about 604.6036818831.

Adding to 221010223 its reverse (322010122), we get a palindrome (543020345).

The spelling of 221010223 in words is "two hundred twenty-one million, ten thousand, two hundred twenty-three".