2264221 has 4 divisors (see below), whose sum is σ = 2267392. Its totient is φ = 2261052.

The previous prime is 2264203. The next prime is 2264231. The reversal of 2264221 is 1224622.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2264221 - 2¹³ = 2256029 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 (2264201) 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, 46 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (566848).

2^2264221 is an apocalyptic number.

It is an amenable number.

2264221 is a deficient number, since it is larger than the sum of its proper divisors (3171).

2264221 is a wasteful number, since it uses less digits than its factorization.

2264221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its digits is 384, while the sum is 19.

The square root of 2264221 is about 1504.7328666577. The cubic root of 2264221 is about 131.3125609538.

Adding to 2264221 its reverse (1224622), we get a palindrome (3488843).

It can be divided in two parts, 2264 and 221, that added together give a triangular number (2485 = T₇₀).

The spelling of 2264221 in words is "two million, two hundred sixty-four thousand, two hundred twenty-one".