2001120020012 has 12 divisors (see below), whose sum is σ = 3583400966376. Its totient is φ = 977291172480.

The previous prime is 2001120019999. The next prime is 2001120020059. The reversal of 2001120020012 is 2100200211002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001120019975 and 2001120020002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5817209189 + ... + 5817209532.

It is an arithmetic number, because the mean of its divisors is an integer number (298616747198).

Almost surely, 2^{2001120020012} is an apocalyptic number.

It is an amenable number.

2001120020012 is a deficient number, since it is larger than the sum of its proper divisors (1582280946364).

2001120020012 is a wasteful number, since it uses less digits than its factorization.

2001120020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11634418768 (or 11634418766 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001120020012 its reverse (2100200211002), we get a palindrome (4101320231014).

The spelling of 2001120020012 in words is "two trillion, one billion, one hundred twenty million, twenty thousand, twelve".