224221133 has 2 divisors, whose sum is σ = 224221134. Its totient is φ = 224221132.

The previous prime is 224221121. The next prime is 224221139. The reversal of 224221133 is 331122422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221354884 + 2866249 = 14878^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 224221133 - 2¹⁸ = 223958989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224221139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112110566 + 112110567.

It is an arithmetic number, because the mean of its divisors is an integer number (112110567).

Almost surely, 2^224221133 is an apocalyptic number.

It is an amenable number.

224221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

224221133 is an equidigital number, since it uses as much as digits as its factorization.

224221133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 224221133 is about 14974.0152597758. The cubic root of 224221133 is about 607.5175768707.

Adding to 224221133 its reverse (331122422), we get a palindrome (555343555).

The spelling of 224221133 in words is "two hundred twenty-four million, two hundred twenty-one thousand, one hundred thirty-three".