2101012115 has 16 divisors (see below), whose sum is σ = 2655379200. Its totient is φ = 1591464672.

The previous prime is 2101012019. The next prime is 2101012127. The reversal of 2101012115 is 5112101012.

It is a cyclic number.

It is not a de Polignac number, because 2101012115 - 2¹⁰ = 2101011091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101012115.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 204266 + ... + 214304.

It is an arithmetic number, because the mean of its divisors is an integer number (165961200).

Almost surely, 2^2101012115 is an apocalyptic number.

2101012115 is a deficient number, since it is larger than the sum of its proper divisors (554367085).

2101012115 is a wasteful number, since it uses less digits than its factorization.

2101012115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 2101012115 is about 45836.7986992984. The cubic root of 2101012115 is about 1280.7848610535.

Adding to 2101012115 its reverse (5112101012), we get a palindrome (7213113127).

The spelling of 2101012115 in words is "two billion, one hundred one million, twelve thousand, one hundred fifteen".