2218223 has 16 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 1809600.

The previous prime is 2218219. The next prime is 2218277. The reversal of 2218223 is 3228122.

It is a cyclic number.

It is not a de Polignac number, because 2218223 - 2² = 2218219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2218195 and 2218204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16868 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

2^2218223 is an apocalyptic number.

2218223 is a deficient number, since it is larger than the sum of its proper divisors (442897).

2218223 is a wasteful number, since it uses less digits than its factorization.

2218223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 384, while the sum is 20.

The square root of 2218223 is about 1489.3700010407. The cubic root of 2218223 is about 130.4172589035.

The spelling of 2218223 in words is "two million, two hundred eighteen thousand, two hundred twenty-three".