224141021 has 8 divisors (see below), whose sum is σ = 241546200. Its totient is φ = 206759232.

The previous prime is 224141017. The next prime is 224141033. The reversal of 224141021 is 120141422.

It can be written as a sum of positive squares in 4 ways, for example, as 3024121 + 221116900 = 1739^2 + 14870^2 .

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 224141021 - 2² = 224141017 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 (224141011) 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 7 ways as a sum of consecutive naturals, for example, 17555 + ... + 27503.

It is an arithmetic number, because the mean of its divisors is an integer number (30193275).

Almost surely, 2^224141021 is an apocalyptic number.

It is an amenable number.

224141021 is a deficient number, since it is larger than the sum of its proper divisors (17405179).

224141021 is a wasteful number, since it uses less digits than its factorization.

224141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11695.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 224141021 is about 14971.3399867881. The cubic root of 224141021 is about 607.4452149052.

Adding to 224141021 its reverse (120141422), we get a palindrome (344282443).

The spelling of 224141021 in words is "two hundred twenty-four million, one hundred forty-one thousand, twenty-one".