2183221 has 4 divisors (see below), whose sum is σ = 2188192. Its totient is φ = 2178252.

The previous prime is 2183201. The next prime is 2183227. The reversal of 2183221 is 1223812.

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 not a de Polignac number, because 2183221 - 2⁵ = 2183189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183227) 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, 1755 + ... + 2728.

It is an arithmetic number, because the mean of its divisors is an integer number (547048).

2^2183221 is an apocalyptic number.

It is an amenable number.

2183221 is a deficient number, since it is larger than the sum of its proper divisors (4971).

2183221 is an equidigital number, since it uses as much as digits as its factorization.

2183221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970.

The product of its digits is 192, while the sum is 19.

The square root of 2183221 is about 1477.5726716477. The cubic root of 2183221 is about 129.7276546969.

The spelling of 2183221 in words is "two million, one hundred eighty-three thousand, two hundred twenty-one".