2218508217105 has 16 divisors (see below), whose sum is σ = 3594544961280. Its totient is φ = 1168227111168.

The previous prime is 2218508217089. The next prime is 2218508217109. The reversal of 2218508217105 is 5017128058122.

It is not a de Polignac number, because 2218508217105 - 2⁴ = 2218508217089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2218508217109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936078232 + ... + 936080601.

It is an arithmetic number, because the mean of its divisors is an integer number (224659060080).

Almost surely, 2^{2218508217105} is an apocalyptic number.

It is an amenable number.

2218508217105 is a deficient number, since it is larger than the sum of its proper divisors (1376036744175).

2218508217105 is a wasteful number, since it uses less digits than its factorization.

2218508217105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872158920.

The product of its (nonzero) digits is 89600, while the sum is 42.

The spelling of 2218508217105 in words is "two trillion, two hundred eighteen billion, five hundred eight million, two hundred seventeen thousand, one hundred five".