3222421 has 4 divisors (see below), whose sum is σ = 3251052. Its totient is φ = 3193792.

The previous prime is 3222413. The next prime is 3222467. The reversal of 3222421 is 1242223.

3222421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1242223 = 163 ⋅7621.

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 1988100 = 1111^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 3222421 - 2³ = 3222413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3222395 and 3222404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14146 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (812763).

Almost surely, 2^3222421 is an apocalyptic number.

It is an amenable number.

3222421 is a deficient number, since it is larger than the sum of its proper divisors (28631).

3222421 is a wasteful number, since it uses less digits than its factorization.

3222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28630.

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

The square root of 3222421 is about 1795.1103030176. The cubic root of 3222421 is about 147.7046245473.

Adding to 3222421 its reverse (1242223), we get a palindrome (4464644).

The spelling of 3222421 in words is "three million, two hundred twenty-two thousand, four hundred twenty-one".