212123223112 has 16 divisors (see below), whose sum is σ = 398637043200. Its totient is φ = 105820011600.

The previous prime is 212123223079. The next prime is 212123223139. The reversal of 212123223112 is 211322321212.

212123223112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30196264 + ... + 30203287.

It is an arithmetic number, because the mean of its divisors is an integer number (24914815200).

Almost surely, 2^212123223112 is an apocalyptic number.

It is an amenable number.

212123223112 is a deficient number, since it is larger than the sum of its proper divisors (186513820088).

212123223112 is a wasteful number, since it uses less digits than its factorization.

212123223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60399996 (or 60399992 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 212123223112 its reverse (211322321212), we get a palindrome (423445544324).

The spelling of 212123223112 in words is "two hundred twelve billion, one hundred twenty-three million, two hundred twenty-three thousand, one hundred twelve".