224221330 has 32 divisors (see below), whose sum is σ = 442085040. Its totient is φ = 81500160.

The previous prime is 224221271. The next prime is 224221331. The reversal of 224221330 is 33122422.

224221330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 60202081 + 164019249 = 7759^2 + 12807^2 .

It is a junction number, because it is equal to n+sod(n) for n = 224221298 and 224221307.

It is not an unprimeable number, because it can be changed into a prime (224221331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17811 + ... + 27670.

Almost surely, 2^224221330 is an apocalyptic number.

224221330 is a deficient number, since it is larger than the sum of its proper divisors (217863710).

224221330 is a wasteful number, since it uses less digits than its factorization.

224221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45534.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 224221330 is about 14974.0218378364. The cubic root of 224221330 is about 607.5177547917.

Adding to 224221330 its reverse (33122422), we get a palindrome (257343752).

The spelling of 224221330 in words is "two hundred twenty-four million, two hundred twenty-one thousand, three hundred thirty".