2012310112121 has 8 divisors (see below), whose sum is σ = 2013123546720. Its totient is φ = 2011496786208.

The previous prime is 2012310112117. The next prime is 2012310112133. The reversal of 2012310112121 is 1212110132102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012310112121 - 2² = 2012310112117 is a prime.

It is a super-2 number, since 2×2012310112121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012310112121.

It is not an unprimeable number, because it can be changed into a prime (2012310112721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75272285 + ... + 75299013.

It is an arithmetic number, because the mean of its divisors is an integer number (251640443340).

Almost surely, 2^{2012310112121} is an apocalyptic number.

It is an amenable number.

2012310112121 is a deficient number, since it is larger than the sum of its proper divisors (813434599).

2012310112121 is a wasteful number, since it uses less digits than its factorization.

2012310112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54343.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2012310112121 its reverse (1212110132102), we get a palindrome (3224420244223).

The spelling of 2012310112121 in words is "two trillion, twelve billion, three hundred ten million, one hundred twelve thousand, one hundred twenty-one".