4214221 has 8 divisors (see below), whose sum is σ = 4797504. Its totient is φ = 3664320.

The previous prime is 4214213. The next prime is 4214227. The reversal of 4214221 is 1224124.

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

It is not a de Polignac number, because 4214221 - 2³ = 4214213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4214195 and 4214204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4214227) 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, 8076 + ... + 8581.

It is an arithmetic number, because the mean of its divisors is an integer number (599688).

Almost surely, 2^4214221 is an apocalyptic number.

It is an amenable number.

4214221 is a deficient number, since it is larger than the sum of its proper divisors (583283).

4214221 is a wasteful number, since it uses less digits than its factorization.

4214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16691.

The product of its digits is 128, while the sum is 16.

The square root of 4214221 is about 2052.8567899393. The cubic root of 4214221 is about 161.5247592134.

Adding to 4214221 its reverse (1224124), we get a palindrome (5438345).

The spelling of 4214221 in words is "four million, two hundred fourteen thousand, two hundred twenty-one".