2112011012105 has 8 divisors (see below), whose sum is σ = 2535461807112. Its totient is φ = 1688909747968.

The previous prime is 2112011012071. The next prime is 2112011012131. The reversal of 2112011012105 is 5012101102112.

It can be written as a sum of positive squares in 4 ways, for example, as 1157956775056 + 954054237049 = 1076084^2 + 976757^2 .

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 2112011012105 - 2²⁰ = 2112009963529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87369422 + ... + 87393591.

It is an arithmetic number, because the mean of its divisors is an integer number (316932725889).

Almost surely, 2^{2112011012105} is an apocalyptic number.

It is an amenable number.

2112011012105 is a deficient number, since it is larger than the sum of its proper divisors (423450795007).

2112011012105 is a wasteful number, since it uses less digits than its factorization.

2112011012105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174765435.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 2112011012105 its reverse (5012101102112), we get a palindrome (7124112114217).

The spelling of 2112011012105 in words is "two trillion, one hundred twelve billion, eleven million, twelve thousand, one hundred five".