2001001100022 has 24 divisors (see below), whose sum is σ = 4351154027376. Its totient is φ = 664592421456.

The previous prime is 2001001099991. The next prime is 2001001100041. The reversal of 2001001100022 is 2200011001002.

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 = 2001001099977 and 2001001100013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200656978 + ... + 200666949.

It is an arithmetic number, because the mean of its divisors is an integer number (181298084474).

Almost surely, 2^{2001001100022} is an apocalyptic number.

2001001100022 is an abundant number, since it is smaller than the sum of its proper divisors (2350152927354).

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

2001001100022 is a wasteful number, since it uses less digits than its factorization.

2001001100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401324212 (or 401324209 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2001001100022 its reverse (2200011001002), we get a palindrome (4201012101024).

The spelling of 2001001100022 in words is "two trillion, one billion, one million, one hundred thousand, twenty-two".