2218000117 has 4 divisors (see below), whose sum is σ = 2221844716. Its totient is φ = 2214155520.

The previous prime is 2218000091. The next prime is 2218000133. The reversal of 2218000117 is 7110008122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2071251121 + 146748996 = 45511^2 + 12114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218000117 - 2⁷ = 2217999989 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 (2218000177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921434 + ... + 1922587.

It is an arithmetic number, because the mean of its divisors is an integer number (555461179).

Almost surely, 2^2218000117 is an apocalyptic number.

It is an amenable number.

2218000117 is a deficient number, since it is larger than the sum of its proper divisors (3844599).

2218000117 is an equidigital number, since it uses as much as digits as its factorization.

2218000117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844598.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 2218000117 is about 47095.6485994195. The cubic root of 2218000117 is about 1304.1289072776.

Adding to 2218000117 its reverse (7110008122), we get a palindrome (9328008239).

The spelling of 2218000117 in words is "two billion, two hundred eighteen million, one hundred seventeen", and thus it is an aban number.