212112120122 has 24 divisors (see below), whose sum is σ = 377097297876. Its totient is φ = 89189999808.

The previous prime is 212112120119. The next prime is 212112120133. The reversal of 212112120122 is 221021211212.

212112120122 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 2 ways, for example, as 174739884361 + 37372235761 = 418019^2 + 193319^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212112120122.

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 in 11 ways as a sum of consecutive naturals, for example, 20413763 + ... + 20424150.

Almost surely, 2^212112120122 is an apocalyptic number.

212112120122 is a deficient number, since it is larger than the sum of its proper divisors (164985177754).

212112120122 is a wasteful number, since it uses less digits than its factorization.

212112120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40837982 (or 40837975 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212112120122 its reverse (221021211212), we get a palindrome (433133331334).

The spelling of 212112120122 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty-two".