2012010013121 has 4 divisors (see below), whose sum is σ = 2012055854292. Its totient is φ = 2011964171952.

The previous prime is 2012010013109. The next prime is 2012010013147. The reversal of 2012010013121 is 1213100102102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60177486721 + 1951832526400 = 245311^2 + 1397080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012010013121 - 2¹⁸ = 2012009750977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012010013096 and 2012010013105.

It is not an unprimeable number, because it can be changed into a prime (2012010013721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22854686 + ... + 22942551.

It is an arithmetic number, because the mean of its divisors is an integer number (503013963573).

Almost surely, 2^{2012010013121} is an apocalyptic number.

It is an amenable number.

2012010013121 is a deficient number, since it is larger than the sum of its proper divisors (45841171).

2012010013121 is an equidigital number, since it uses as much as digits as its factorization.

2012010013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45841170.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2012010013121 its reverse (1213100102102), we get a palindrome (3225110115223).

The spelling of 2012010013121 in words is "two trillion, twelve billion, ten million, thirteen thousand, one hundred twenty-one".