4204221 has 8 divisors (see below), whose sum is σ = 6406464. Its totient is φ = 2402400.

The previous prime is 4204169. The next prime is 4204223. The reversal of 4204221 is 1224024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4204221 - 2⁶ = 4204157 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4204221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100080 + ... + 100121.

It is an arithmetic number, because the mean of its divisors is an integer number (800808).

Almost surely, 2^4204221 is an apocalyptic number.

It is an amenable number.

4204221 is a deficient number, since it is larger than the sum of its proper divisors (2202243).

4204221 is a wasteful number, since it uses less digits than its factorization.

4204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200211.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4204221 is about 2050.4197131319. The cubic root of 4204221 is about 161.3968963655.

Adding to 4204221 its reverse (1224024), we get a palindrome (5428245).

The spelling of 4204221 in words is "four million, two hundred four thousand, two hundred twenty-one".