2421229 has 2 divisors, whose sum is σ = 2421230. Its totient is φ = 2421228.

The previous prime is 2421203. The next prime is 2421247. The reversal of 2421229 is 9221242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 455625 = 1402^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421229 - 2¹¹ = 2419181 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421329) 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, 1210614 + 1210615.

It is an arithmetic number, because the mean of its divisors is an integer number (1210615).

2^2421229 is an apocalyptic number.

It is an amenable number.

2421229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421229 is an equidigital number, since it uses as much as digits as its factorization.

2421229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 2421229 is about 1556.0298840318. The cubic root of 2421229 is about 134.2801926527.

The spelling of 2421229 in words is "two million, four hundred twenty-one thousand, two hundred twenty-nine".