2218888811 has 2 divisors, whose sum is σ = 2218888812. Its totient is φ = 2218888810.

The previous prime is 2218888787. The next prime is 2218888813. The reversal of 2218888811 is 1188888122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2218888811 - 2⁶ = 2218888747 is a prime.

It is a Sophie Germain prime.

Together with 2218888813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2218888813) 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 as a sum of consecutive naturals, namely, 1109444405 + 1109444406.

It is an arithmetic number, because the mean of its divisors is an integer number (1109444406).

Almost surely, 2^2218888811 is an apocalyptic number.

2218888811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218888811 is an equidigital number, since it uses as much as digits as its factorization.

2218888811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131072, while the sum is 47.

The square root of 2218888811 is about 47105.0826450819. The cubic root of 2218888811 is about 1304.3030606768.

The spelling of 2218888811 in words is "two billion, two hundred eighteen million, eight hundred eighty-eight thousand, eight hundred eleven".