2001020212012 has 6 divisors (see below), whose sum is σ = 3501785371028. Its totient is φ = 1000510106004.

The previous prime is 2001020212001. The next prime is 2001020212019. The reversal of 2001020212012 is 2102120201002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001020211983 and 2001020212001.

It is not an unprimeable number, because it can be changed into a prime (2001020212019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250127526498 + ... + 250127526505.

Almost surely, 2^{2001020212012} is an apocalyptic number.

It is an amenable number.

2001020212012 is a deficient number, since it is larger than the sum of its proper divisors (1500765159016).

2001020212012 is a wasteful number, since it uses less digits than its factorization.

2001020212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500255053007 (or 500255053005 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001020212012 its reverse (2102120201002), we get a palindrome (4103140413014).

The spelling of 2001020212012 in words is "two trillion, one billion, twenty million, two hundred twelve thousand, twelve".