2001023222011 has 16 divisors (see below), whose sum is σ = 2319240687840. Its totient is φ = 1708914170880.

The previous prime is 2001023221987. The next prime is 2001023222039. The reversal of 2001023222011 is 1102223201002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2001023222011 - 2¹⁷ = 2001023090939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001023222041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84755766 + ... + 84779371.

It is an arithmetic number, because the mean of its divisors is an integer number (144952542990).

Almost surely, 2^{2001023222011} is an apocalyptic number.

2001023222011 is a deficient number, since it is larger than the sum of its proper divisors (318217465829).

2001023222011 is a wasteful number, since it uses less digits than its factorization.

2001023222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169535214.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2001023222011 its reverse (1102223201002), we get a palindrome (3103246423013).

The spelling of 2001023222011 in words is "two trillion, one billion, twenty-three million, two hundred twenty-two thousand, eleven".