12120002200121 has 8 divisors (see below), whose sum is σ = 12584198755200. Its totient is φ = 11658890008080.

The previous prime is 12120002200087. The next prime is 12120002200153. The reversal of 12120002200121 is 12100220002121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120002200121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12120002200096 and 12120002200105.

It is not an unprimeable number, because it can be changed into a prime (12120002206121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771082751 + ... + 771098468.

It is an arithmetic number, because the mean of its divisors is an integer number (1573024844400).

Almost surely, 2^{12120002200121} is an apocalyptic number.

It is an amenable number.

12120002200121 is a deficient number, since it is larger than the sum of its proper divisors (464196555079).

12120002200121 is a wasteful number, since it uses less digits than its factorization.

12120002200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542181519.

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

Adding to 12120002200121 its reverse (12100220002121), we get a palindrome (24220222202242).

The spelling of 12120002200121 in words is "twelve trillion, one hundred twenty billion, two million, two hundred thousand, one hundred twenty-one".