2112312212 has 6 divisors (see below), whose sum is σ = 3696546378. Its totient is φ = 1056156104.

The previous prime is 2112312197. The next prime is 2112312229. The reversal of 2112312212 is 2122132112.

It can be written as a sum of positive squares in only one way, i.e., 2057166736 + 55145476 = 45356^2 + 7426^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 264039023 + ... + 264039030.

It is an arithmetic number, because the mean of its divisors is an integer number (616091063).

Almost surely, 2^2112312212 is an apocalyptic number.

It is an amenable number.

2112312212 is a deficient number, since it is larger than the sum of its proper divisors (1584234166).

2112312212 is a wasteful number, since it uses less digits than its factorization.

2112312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528078057 (or 528078055 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2112312212 is about 45959.8978675976. The cubic root of 2112312212 is about 1283.0769505189.

Adding to 2112312212 its reverse (2122132112), we get a palindrome (4234444324).

The spelling of 2112312212 in words is "two billion, one hundred twelve million, three hundred twelve thousand, two hundred twelve".