2212318771 has 4 divisors (see below), whose sum is σ = 2382497152. Its totient is φ = 2042140392.

The previous prime is 2212318741. The next prime is 2212318777. The reversal of 2212318771 is 1778132122.

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 2212318771 - 2⁷ = 2212318643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212318777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85089171 + ... + 85089196.

It is an arithmetic number, because the mean of its divisors is an integer number (595624288).

Almost surely, 2^2212318771 is an apocalyptic number.

2212318771 is a deficient number, since it is larger than the sum of its proper divisors (170178381).

2212318771 is a wasteful number, since it uses less digits than its factorization.

2212318771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170178380.

The product of its digits is 9408, while the sum is 34.

The square root of 2212318771 is about 47035.2928235809. The cubic root of 2212318771 is about 1303.0144584742.

The spelling of 2212318771 in words is "two billion, two hundred twelve million, three hundred eighteen thousand, seven hundred seventy-one".