2100112012105 has 16 divisors (see below), whose sum is σ = 2578809119040. Its totient is φ = 1640975168448.

The previous prime is 2100112012079. The next prime is 2100112012127. The reversal of 2100112012105 is 5012102110012.

It is a cyclic number.

It is not a de Polignac number, because 2100112012105 - 2¹¹ = 2100112010057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10085574 + ... + 10291696.

It is an arithmetic number, because the mean of its divisors is an integer number (161175569940).

Almost surely, 2^{2100112012105} is an apocalyptic number.

It is an amenable number.

2100112012105 is a deficient number, since it is larger than the sum of its proper divisors (478697106935).

2100112012105 is a wasteful number, since it uses less digits than its factorization.

2100112012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253560.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 2100112012105 its reverse (5012102110012), we get a palindrome (7112214122117).

The spelling of 2100112012105 in words is "two trillion, one hundred billion, one hundred twelve million, twelve thousand, one hundred five".