2102010012105 has 16 divisors (see below), whose sum is σ = 3388889427264. Its totient is φ = 1112514203840.

The previous prime is 2102010012103. The next prime is 2102010012161. The reversal of 2102010012105 is 5012100102012.

It is not a de Polignac number, because 2102010012105 - 2¹ = 2102010012103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2102010012103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534860634 + ... + 534864563.

It is an arithmetic number, because the mean of its divisors is an integer number (211805589204).

Almost surely, 2^{2102010012105} is an apocalyptic number.

It is an amenable number.

2102010012105 is a deficient number, since it is larger than the sum of its proper divisors (1286879415159).

2102010012105 is a wasteful number, since it uses less digits than its factorization.

2102010012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069725336.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 2102010012105 its reverse (5012100102012), we get a palindrome (7114110114117).

The spelling of 2102010012105 in words is "two trillion, one hundred two billion, ten million, twelve thousand, one hundred five".