4532221 has 2 divisors, whose sum is σ = 4532222. Its totient is φ = 4532220.

The previous prime is 4532201. The next prime is 4532233. The reversal of 4532221 is 1222354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 1726596 = 1675^2 + 1314^2 .

It is a cyclic number.

It is not a de Polignac number, because 4532221 - 2¹¹ = 4530173 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 (4532201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2266110 + 2266111.

It is an arithmetic number, because the mean of its divisors is an integer number (2266111).

Almost surely, 2^4532221 is an apocalyptic number.

It is an amenable number.

4532221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4532221 is an equidigital number, since it uses as much as digits as its factorization.

4532221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 19.

The square root of 4532221 is about 2128.9013598568. The cubic root of 4532221 is about 165.4894679059.

Adding to 4532221 its reverse (1222354), we get a palindrome (5754575).

It can be divided in two parts, 4532 and 221, that added together give a triangular number (4753 = T₉₇).

The spelling of 4532221 in words is "four million, five hundred thirty-two thousand, two hundred twenty-one".