2218105 has 16 divisors (see below), whose sum is σ = 2770560. Its totient is φ = 1703808.

The previous prime is 2218093. The next prime is 2218121. The reversal of 2218105 is 5018122.

2218105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2218105 - 2¹¹ = 2216057 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21484 + ... + 21586.

It is an arithmetic number, because the mean of its divisors is an integer number (173160).

2^2218105 is an apocalyptic number.

It is an amenable number.

2218105 is a deficient number, since it is larger than the sum of its proper divisors (552455).

2218105 is a wasteful number, since it uses less digits than its factorization.

2218105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2218105 is about 1489.3303864489. The cubic root of 2218105 is about 130.4149463152.

The spelling of 2218105 in words is "two million, two hundred eighteen thousand, one hundred five".