2001000012011 has 64 divisors (see below), whose sum is σ = 2748746112000. Its totient is φ = 1435469817600.

The previous prime is 2001000011953. The next prime is 2001000012013. The reversal of 2001000012011 is 1102100001002.

It is not a de Polignac number, because 2001000012011 - 2¹⁴ = 2000999995627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001000012011.

It is not an unprimeable number, because it can be changed into a prime (2001000012013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18535751 + ... + 18643391.

It is an arithmetic number, because the mean of its divisors is an integer number (42949158000).

Almost surely, 2^{2001000012011} is an apocalyptic number.

2001000012011 is a deficient number, since it is larger than the sum of its proper divisors (747746099989).

2001000012011 is a wasteful number, since it uses less digits than its factorization.

2001000012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108065 (or 108051 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001000012011 its reverse (1102100001002), we get a palindrome (3103100013013).

The spelling of 2001000012011 in words is "two trillion, one billion, twelve thousand, eleven".