2212212018 has 32 divisors (see below), whose sum is σ = 4690598400. Its totient is φ = 694327680.

The previous prime is 2212212011. The next prime is 2212212029. The reversal of 2212212018 is 8102122122.

It is a junction number, because it is equal to n+sod(n) for n = 2212211985 and 2212212003.

It is not an unprimeable number, because it can be changed into a prime (2212212011) 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 15 ways as a sum of consecutive naturals, for example, 153843 + ... + 167606.

It is an arithmetic number, because the mean of its divisors is an integer number (146581200).

Almost surely, 2^2212212018 is an apocalyptic number.

2212212018 is an abundant number, since it is smaller than the sum of its proper divisors (2478386382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212212018 is a wasteful number, since it uses less digits than its factorization.

2212212018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321522.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2212212018 is about 47034.1579918255. The cubic root of 2212212018 is about 1302.9934996290.

The spelling of 2212212018 in words is "two billion, two hundred twelve million, two hundred twelve thousand, eighteen".