224026221 has 32 divisors (see below), whose sum is σ = 324943488. Its totient is φ = 136765440.

The previous prime is 224026219. The next prime is 224026223. The reversal of 224026221 is 122620422.

It is an interprime number because it is at equal distance from previous prime (224026219) and next prime (224026223).

It is not a de Polignac number, because 224026221 - 2¹ = 224026219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224026223) 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 31 ways as a sum of consecutive naturals, for example, 332541 + ... + 333213.

It is an arithmetic number, because the mean of its divisors is an integer number (10154484).

Almost surely, 2^224026221 is an apocalyptic number.

It is an amenable number.

224026221 is a deficient number, since it is larger than the sum of its proper divisors (100917267).

224026221 is a wasteful number, since it uses less digits than its factorization.

224026221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 224026221 is about 14967.5055035901. The cubic root of 224026221 is about 607.3414905932.

Adding to 224026221 its reverse (122620422), we get a palindrome (346646643).

The spelling of 224026221 in words is "two hundred twenty-four million, twenty-six thousand, two hundred twenty-one".