2012605121 has 16 divisors (see below), whose sum is σ = 2100919680. Its totient is φ = 1926207360.

The previous prime is 2012605117. The next prime is 2012605151. The reversal of 2012605121 is 1215062102.

It is a cyclic number.

It is not a de Polignac number, because 2012605121 - 2² = 2012605117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012605093 and 2012605102.

It is not an unprimeable number, because it can be changed into a prime (2012605151) 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, 2124770 + ... + 2125716.

It is an arithmetic number, because the mean of its divisors is an integer number (131307480).

Almost surely, 2^2012605121 is an apocalyptic number.

It is an amenable number.

2012605121 is a deficient number, since it is larger than the sum of its proper divisors (88314559).

2012605121 is an equidigital number, since it uses as much as digits as its factorization.

2012605121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2012605121 is about 44862.0677298762. The cubic root of 2012605121 is about 1262.5624180623.

Adding to 2012605121 its reverse (1215062102), we get a palindrome (3227667223).

The spelling of 2012605121 in words is "two billion, twelve million, six hundred five thousand, one hundred twenty-one".