2012000120197 has 4 divisors (see below), whose sum is σ = 2012016809356. Its totient is φ = 2011983431040.

The previous prime is 2012000120189. The next prime is 2012000120203. The reversal of 2012000120197 is 7910210002102.

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 919084598721 + 1092915521476 = 958689^2 + 1045426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012000120197 - 2³ = 2012000120189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012000120497) 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, 8162418 + ... + 8405299.

It is an arithmetic number, because the mean of its divisors is an integer number (503004202339).

Almost surely, 2^{2012000120197} is an apocalyptic number.

It is an amenable number.

2012000120197 is a deficient number, since it is larger than the sum of its proper divisors (16689159).

2012000120197 is a wasteful number, since it uses less digits than its factorization.

2012000120197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16689158.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 2012000120197 its reverse (7910210002102), we get a palindrome (9922210122299).

The spelling of 2012000120197 in words is "two trillion, twelve billion, one hundred twenty thousand, one hundred ninety-seven".