12000312201121 has 4 divisors (see below), whose sum is σ = 12706212918852. Its totient is φ = 11294411483392.

The previous prime is 12000312201113. The next prime is 12000312201181. The reversal of 12000312201121 is 12110221300021.

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 8398056243600 + 3602255957521 = 2897940^2 + 1897961^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000312201121 - 2³ = 12000312201113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000312201095 and 12000312201104.

It is not an unprimeable number, because it can be changed into a prime (12000312201181) 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, 352950358840 + ... + 352950358873.

It is an arithmetic number, because the mean of its divisors is an integer number (3176553229713).

Almost surely, 2^{12000312201121} is an apocalyptic number.

It is an amenable number.

12000312201121 is a deficient number, since it is larger than the sum of its proper divisors (705900717731).

12000312201121 is an equidigital number, since it uses as much as digits as its factorization.

12000312201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705900717730.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12000312201121 its reverse (12110221300021), we get a palindrome (24110533501142).

The spelling of 12000312201121 in words is "twelve trillion, three hundred twelve million, two hundred one thousand, one hundred twenty-one".