2001022011006 has 32 divisors (see below), whose sum is σ = 4237546049568. Its totient is φ = 627758622720.

The previous prime is 2001022010969. The next prime is 2001022011013. The reversal of 2001022011006 is 6001102201002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5545356 + ... + 5895168.

It is an arithmetic number, because the mean of its divisors is an integer number (132423314049).

Almost surely, 2^{2001022011006} is an apocalyptic number.

2001022011006 is an abundant number, since it is smaller than the sum of its proper divisors (2236524038562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001022011006 is a wasteful number, since it uses less digits than its factorization.

2001022011006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405916.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2001022011006 its reverse (6001102201002), we get a palindrome (8002124212008).

The spelling of 2001022011006 in words is "two trillion, one billion, twenty-two million, eleven thousand, six".