4133424221 has 2 divisors, whose sum is σ = 4133424222. Its totient is φ = 4133424220.

The previous prime is 4133424209. The next prime is 4133424247. The reversal of 4133424221 is 1224243314.

It is an a-pointer prime, because the next prime (4133424247) can be obtained adding 4133424221 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4051322500 + 82101721 = 63650^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 4133424221 - 2⁶ = 4133424157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4133421221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2066712110 + 2066712111.

It is an arithmetic number, because the mean of its divisors is an integer number (2066712111).

Almost surely, 2^4133424221 is an apocalyptic number.

It is an amenable number.

4133424221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4133424221 is an equidigital number, since it uses as much as digits as its factorization.

4133424221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 4133424221 is about 64291.7119153006. The cubic root of 4133424221 is about 1604.8581793213.

Adding to 4133424221 its reverse (1224243314), we get a palindrome (5357667535).

The spelling of 4133424221 in words is "four billion, one hundred thirty-three million, four hundred twenty-four thousand, two hundred twenty-one".