4232221 has 4 divisors (see below), whose sum is σ = 4836832. Its totient is φ = 3627612.

The previous prime is 4232197. The next prime is 4232233. The reversal of 4232221 is 1222324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4232221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4232195 and 4232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4232821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302295 + ... + 302308.

It is an arithmetic number, because the mean of its divisors is an integer number (1209208).

Almost surely, 2^4232221 is an apocalyptic number.

It is an amenable number.

4232221 is a deficient number, since it is larger than the sum of its proper divisors (604611).

4232221 is an equidigital number, since it uses as much as digits as its factorization.

4232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604610.

The product of its digits is 192, while the sum is 16.

The square root of 4232221 is about 2057.2362528402. The cubic root of 4232221 is about 161.7544035520.

Adding to 4232221 its reverse (1222324), we get a palindrome (5454545).

The spelling of 4232221 in words is "four million, two hundred thirty-two thousand, two hundred twenty-one".