224402221 has 8 divisors (see below), whose sum is σ = 225828000. Its totient is φ = 222981360.

The previous prime is 224402209. The next prime is 224402239. The reversal of 224402221 is 122204422.

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 224402221 - 2¹³ = 224394029 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 (224402201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131230 + ... + 132928.

It is an arithmetic number, because the mean of its divisors is an integer number (28228500).

Almost surely, 2^224402221 is an apocalyptic number.

It is an amenable number.

224402221 is a deficient number, since it is larger than the sum of its proper divisors (1425779).

224402221 is a wasteful number, since it uses less digits than its factorization.

224402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 224402221 is about 14980.0607809181. The cubic root of 224402221 is about 607.6810829265.

Adding to 224402221 its reverse (122204422), we get a palindrome (346606643).

The spelling of 224402221 in words is "two hundred twenty-four million, four hundred two thousand, two hundred twenty-one".