212101003121 has 8 divisors (see below), whose sum is σ = 242598390720. Its totient is φ = 181652926608.

The previous prime is 212101003117. The next prime is 212101003157. The reversal of 212101003121 is 121300101212.

212101003121 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 212101003121 - 2² = 212101003117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212101003096 and 212101003105.

It is not an unprimeable number, because it can be changed into a prime (212101003111) 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, 12318551 + ... + 12335756.

It is an arithmetic number, because the mean of its divisors is an integer number (30324798840).

Almost surely, 2^212101003121 is an apocalyptic number.

It is an amenable number.

212101003121 is a deficient number, since it is larger than the sum of its proper divisors (30497387599).

212101003121 is a wasteful number, since it uses less digits than its factorization.

212101003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24655543.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212101003121 its reverse (121300101212), we get a palindrome (333401104333).

The spelling of 212101003121 in words is "two hundred twelve billion, one hundred one million, three thousand, one hundred twenty-one".