2024221 has 2 divisors, whose sum is σ = 2024222. Its totient is φ = 2024220.

The previous prime is 2024219. The next prime is 2024227. The reversal of 2024221 is 1224202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1240996 + 783225 = 1114^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2024221 - 2¹ = 2024219 is a prime.

Together with 2024219, it forms a pair of twin primes.

It is a Chen prime.

2024221 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2024227) 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 as a sum of consecutive naturals, namely, 1012110 + 1012111.

It is an arithmetic number, because the mean of its divisors is an integer number (1012111).

2^2024221 is an apocalyptic number.

It is an amenable number.

2024221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2024221 is an equidigital number, since it uses as much as digits as its factorization.

2024221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2024221 is about 1422.7512080473. The cubic root of 2024221 is about 126.4986746517.

Adding to 2024221 its reverse (1224202), we get a palindrome (3248423).

The spelling of 2024221 in words is "two million, twenty-four thousand, two hundred twenty-one".