4032221 has 2 divisors, whose sum is σ = 4032222. Its totient is φ = 4032220.

The previous prime is 4032211. The next prime is 4032257. The reversal of 4032221 is 1222304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3880900 + 151321 = 1970^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 4032221 - 2⁶ = 4032157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4032196 and 4032205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4032211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2016110 + 2016111.

It is an arithmetic number, because the mean of its divisors is an integer number (2016111).

Almost surely, 2^4032221 is an apocalyptic number.

It is an amenable number.

4032221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4032221 is an equidigital number, since it uses as much as digits as its factorization.

4032221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4032221 is about 2008.0390932449. The cubic root of 4032221 is about 159.1651962377.

Adding to 4032221 its reverse (1222304), we get a palindrome (5254525).

The spelling of 4032221 in words is "four million, thirty-two thousand, two hundred twenty-one".