2001011012012 has 6 divisors (see below), whose sum is σ = 3501769271028. Its totient is φ = 1000505506004.

The previous prime is 2001011011981. The next prime is 2001011012017. The reversal of 2001011012012 is 2102101101002.

It is a junction number, because it is equal to n+sod(n) for n = 2001011011984 and 2001011012002.

It is not an unprimeable number, because it can be changed into a prime (2001011012017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250126376498 + ... + 250126376505.

It is an arithmetic number, because the mean of its divisors is an integer number (583628211838).

Almost surely, 2^{2001011012012} is an apocalyptic number.

It is an amenable number.

2001011012012 is a deficient number, since it is larger than the sum of its proper divisors (1500758259016).

2001011012012 is a wasteful number, since it uses less digits than its factorization.

2001011012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500252753007 (or 500252753005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001011012012 its reverse (2102101101002), we get a palindrome (4103112113014).

The spelling of 2001011012012 in words is "two trillion, one billion, eleven million, twelve thousand, twelve".