212101213113 has 24 divisors (see below), whose sum is σ = 307848742656. Its totient is φ = 140718772800.

The previous prime is 212101213097. The next prime is 212101213141. The reversal of 212101213113 is 311312101212.

212101213113 is a `hidden beast` number, since 21 + 210 + 121 + 311 + 3 = 666.

It is not a de Polignac number, because 212101213113 - 2⁴ = 212101213097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212101213013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2114373 + ... + 2212413.

It is an arithmetic number, because the mean of its divisors is an integer number (12827030944).

Almost surely, 2^212101213113 is an apocalyptic number.

It is an amenable number.

212101213113 is a deficient number, since it is larger than the sum of its proper divisors (95747529543).

212101213113 is a wasteful number, since it uses less digits than its factorization.

212101213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99205 (or 99202 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 212101213113 its reverse (311312101212), we get a palindrome (523413314325).

The spelling of 212101213113 in words is "two hundred twelve billion, one hundred one million, two hundred thirteen thousand, one hundred thirteen".