2212202218 has 4 divisors (see below), whose sum is σ = 3318303330. Its totient is φ = 1106101108.

The previous prime is 2212202183. The next prime is 2212202219. The reversal of 2212202218 is 8122022122.

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

It can be written as a sum of positive squares in only one way, i.e., 2181543849 + 30658369 = 46707^2 + 5537^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2212202219) 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 as a sum of consecutive naturals, namely, 553050553 + ... + 553050556.

Almost surely, 2^2212202218 is an apocalyptic number.

2212202218 is a deficient number, since it is larger than the sum of its proper divisors (1106101112).

2212202218 is a wasteful number, since it uses less digits than its factorization.

2212202218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106101111.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 2212202218 is about 47034.0538121051. The cubic root of 2212202218 is about 1302.9915755586.

The spelling of 2212202218 in words is "two billion, two hundred twelve million, two hundred two thousand, two hundred eighteen".