212112212212 has 6 divisors (see below), whose sum is σ = 371196371378. Its totient is φ = 106056106104.

The previous prime is 212112212203. The next prime is 212112212227. The reversal of 212112212212 is 212212211212.

212112212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179508131856 + 32604080356 = 423684^2 + 180566^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 212112212212.

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, 26514026523 + ... + 26514026530.

Almost surely, 2^212112212212 is an apocalyptic number.

It is an amenable number.

212112212212 is a deficient number, since it is larger than the sum of its proper divisors (159084159166).

212112212212 is a wasteful number, since it uses less digits than its factorization.

212112212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53028053057 (or 53028053055 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

Adding to 212112212212 its reverse (212212211212), we get a palindrome (424324423424).

The spelling of 212112212212 in words is "two hundred twelve billion, one hundred twelve million, two hundred twelve thousand, two hundred twelve".