212112120103 has 4 divisors (see below), whose sum is σ = 228428437048. Its totient is φ = 195795803160.

The previous prime is 212112120089. The next prime is 212112120109. The reversal of 212112120103 is 301021211212.

212112120103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212112120103 - 2⁵ = 212112120071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112120109) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8158158453 + ... + 8158158478.

It is an arithmetic number, because the mean of its divisors is an integer number (57107109262).

Almost surely, 2^212112120103 is an apocalyptic number.

212112120103 is a deficient number, since it is larger than the sum of its proper divisors (16316316945).

212112120103 is a wasteful number, since it uses less digits than its factorization.

212112120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316316944.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212112120103 its reverse (301021211212), we get a palindrome (513133331315).

The spelling of 212112120103 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, one hundred three".