2012015205 has 12 divisors (see below), whose sum is σ = 3487493100. Its totient is φ = 1073074752.

The previous prime is 2012015197. The next prime is 2012015209. The reversal of 2012015205 is 5025102102.

2012015205 is a `hidden beast` number, since 20 + 120 + 1 + 520 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 395492769 + 1616522436 = 19887^2 + 40206^2 .

It is not a de Polignac number, because 2012015205 - 2³ = 2012015197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012015209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22355680 + ... + 22355769.

It is an arithmetic number, because the mean of its divisors is an integer number (290624425).

Almost surely, 2^2012015205 is an apocalyptic number.

It is an amenable number.

2012015205 is a deficient number, since it is larger than the sum of its proper divisors (1475477895).

2012015205 is a wasteful number, since it uses less digits than its factorization.

2012015205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44711460 (or 44711457 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2012015205 is about 44855.4924730517. The cubic root of 2012015205 is about 1262.4390491765.

Adding to 2012015205 its reverse (5025102102), we get a palindrome (7037117307).

The spelling of 2012015205 in words is "two billion, twelve million, fifteen thousand, two hundred five".