2218922179 has 4 divisors (see below), whose sum is σ = 2224193200. Its totient is φ = 2213651160.

The previous prime is 2218922141. The next prime is 2218922213. The reversal of 2218922179 is 9712298122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2218922179 - 2²¹ = 2216825027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2218922119) 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, 2634879 + ... + 2635720.

It is an arithmetic number, because the mean of its divisors is an integer number (556048300).

Almost surely, 2^2218922179 is an apocalyptic number.

2218922179 is a deficient number, since it is larger than the sum of its proper divisors (5271021).

2218922179 is an equidigital number, since it uses as much as digits as its factorization.

2218922179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271020.

The product of its digits is 72576, while the sum is 43.

The square root of 2218922179 is about 47105.4368305825. The cubic root of 2218922179 is about 1304.3095987491.

The spelling of 2218922179 in words is "two billion, two hundred eighteen million, nine hundred twenty-two thousand, one hundred seventy-nine".