2001002111012 has 24 divisors (see below), whose sum is σ = 3505939098816. Its totient is φ = 999305562528.

The previous prime is 2001002111011. The next prime is 2001002111021. The reversal of 2001002111012 is 2101112001002.

It is a junction number, because it is equal to n+sod(n) for n = 2001002110984 and 2001002111002.

It is not an unprimeable number, because it can be changed into a prime (2001002111011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26121038 + ... + 26197530.

It is an arithmetic number, because the mean of its divisors is an integer number (146080795784).

Almost surely, 2^{2001002111012} is an apocalyptic number.

It is an amenable number.

2001002111012 is a deficient number, since it is larger than the sum of its proper divisors (1504936987804).

2001002111012 is a wasteful number, since it uses less digits than its factorization.

2001002111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84227 (or 84225 counting only the distinct ones).

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

Adding to 2001002111012 its reverse (2101112001002), we get a palindrome (4102114112014).

The spelling of 2001002111012 in words is "two trillion, one billion, two million, one hundred eleven thousand, twelve".