12012302010121 has 4 divisors (see below), whose sum is σ = 13728345154432. Its totient is φ = 10296258865812.

The previous prime is 12012302010067. The next prime is 12012302010157. The reversal of 12012302010121 is 12101020321021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12012302010121 - 2⁷ = 12012302009993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012302010095 and 12012302010104.

It is not an unprimeable number, because it can be changed into a prime (12012303010121) 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, 858021572145 + ... + 858021572158.

It is an arithmetic number, because the mean of its divisors is an integer number (3432086288608).

Almost surely, 2^{12012302010121} is an apocalyptic number.

It is an amenable number.

12012302010121 is a deficient number, since it is larger than the sum of its proper divisors (1716043144311).

12012302010121 is an equidigital number, since it uses as much as digits as its factorization.

12012302010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716043144310.

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

Adding to 12012302010121 its reverse (12101020321021), we get a palindrome (24113322331142).

The spelling of 12012302010121 in words is "twelve trillion, twelve billion, three hundred two million, ten thousand, one hundred twenty-one".