212112122101 has 8 divisors (see below), whose sum is σ = 245006515584. Its totient is φ = 181486307520.

The previous prime is 212112122099. The next prime is 212112122111. The reversal of 212112122101 is 101221211212.

212112122101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212112122101 - 2¹ = 212112122099 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 (212112122111) 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 7 ways as a sum of consecutive naturals, for example, 567144525 + ... + 567144898.

It is an arithmetic number, because the mean of its divisors is an integer number (30625814448).

Almost surely, 2^212112122101 is an apocalyptic number.

It is an amenable number.

212112122101 is a deficient number, since it is larger than the sum of its proper divisors (32894393483).

212112122101 is a wasteful number, since it uses less digits than its factorization.

212112122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134289451.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212112122101 its reverse (101221211212), we get a palindrome (313333333313).

The spelling of 212112122101 in words is "two hundred twelve billion, one hundred twelve million, one hundred twenty-two thousand, one hundred one".