2001000211011 has 24 divisors (see below), whose sum is σ = 2893364750016. Its totient is φ = 1332601522560.

The previous prime is 2001000211003. The next prime is 2001000211069. The reversal of 2001000211011 is 1101120001002.

It is a happy number.

It is not a de Polignac number, because 2001000211011 - 2³ = 2001000211003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2001000210984 and 2001000211002.

It is not an unprimeable number, because it can be changed into a prime (2001000212011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124486471 + ... + 124502543.

It is an arithmetic number, because the mean of its divisors is an integer number (120556864584).

Almost surely, 2^{2001000211011} is an apocalyptic number.

2001000211011 is a deficient number, since it is larger than the sum of its proper divisors (892364539005).

2001000211011 is a wasteful number, since it uses less digits than its factorization.

2001000211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29723 (or 29720 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2001000211011 its reverse (1101120001002), we get a palindrome (3102120212013).

The spelling of 2001000211011 in words is "two trillion, one billion, two hundred eleven thousand, eleven".