12120000200001 has 12 divisors (see below), whose sum is σ = 17979820117012. Its totient is φ = 7861621751136.

The previous prime is 12120000199987. The next prime is 12120000200017. The reversal of 12120000200001 is 10000200002121.

It can be written as a sum of positive squares in 2 ways, for example, as 6966305669376 + 5153694530625 = 2639376^2 + 2270175^2 .

It is not a de Polignac number, because 12120000200001 - 2³¹ = 12117852716353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120000200071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18198198166 + ... + 18198198831.

Almost surely, 2^{12120000200001} is an apocalyptic number.

It is an amenable number.

12120000200001 is a deficient number, since it is larger than the sum of its proper divisors (5859819917011).

12120000200001 is a wasteful number, since it uses less digits than its factorization.

12120000200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36396397040 (or 36396397037 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12120000200001 its reverse (10000200002121), we get a palindrome (22120200202122).

The spelling of 12120000200001 in words is "twelve trillion, one hundred twenty billion, two hundred thousand, one".