12012202000121 has 4 divisors (see below), whose sum is σ = 12238847320932. Its totient is φ = 11785556679312.

The previous prime is 12012202000103. The next prime is 12012202000147. The reversal of 12012202000121 is 12100020221021.

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 9918216462400 + 2093985537721 = 3149320^2 + 1447061^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012202000121 - 2³⁸ = 11737324093177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012202000096 and 12012202000105.

It is not an unprimeable number, because it can be changed into a prime (12012202030121) 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, 113322660326 + ... + 113322660431.

It is an arithmetic number, because the mean of its divisors is an integer number (3059711830233).

Almost surely, 2^{12012202000121} is an apocalyptic number.

It is an amenable number.

12012202000121 is a deficient number, since it is larger than the sum of its proper divisors (226645320811).

12012202000121 is an equidigital number, since it uses as much as digits as its factorization.

12012202000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226645320810.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012202000121 its reverse (12100020221021), we get a palindrome (24112222221142).

The spelling of 12012202000121 in words is "twelve trillion, twelve billion, two hundred two million, one hundred twenty-one", and thus it is an aban number.