2001200000012 has 48 divisors (see below), whose sum is σ = 3645721094400. Its totient is φ = 960385984320.

The previous prime is 2001199999963. The next prime is 2001200000017. The reversal of 2001200000012 is 2100000021002.

It is not an unprimeable number, because it can be changed into a prime (2001200000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26560289 + ... + 26635527.

It is an arithmetic number, because the mean of its divisors is an integer number (75952522800).

Almost surely, 2^{2001200000012} is an apocalyptic number.

It is an amenable number.

2001200000012 is a deficient number, since it is larger than the sum of its proper divisors (1644521094388).

2001200000012 is a wasteful number, since it uses less digits than its factorization.

2001200000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77966 (or 77964 counting only the distinct ones).

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

Adding to 2001200000012 its reverse (2100000021002), we get a palindrome (4101200021014).

The spelling of 2001200000012 in words is "two trillion, one billion, two hundred million, twelve", and thus it is an aban number.