2001111110220 has 96 divisors (see below), whose sum is σ = 6057417542400. Its totient is φ = 491880501504.

The previous prime is 2001111110203. The next prime is 2001111110227. The reversal of 2001111110220 is 220111111002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2001111110196 and 2001111110205.

It is not an unprimeable number, because it can be changed into a prime (2001111110227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23678910 + ... + 23763269.

It is an arithmetic number, because the mean of its divisors is an integer number (63098099400).

Almost surely, 2^{2001111110220} is an apocalyptic number.

2001111110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001111110220 is an abundant number, since it is smaller than the sum of its proper divisors (4056306432180).

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

2001111110220 is a wasteful number, since it uses less digits than its factorization.

2001111110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47442247 (or 47442245 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2001111110220 its reverse (220111111002), we get a palindrome (2221222221222).

The spelling of 2001111110220 in words is "two trillion, one billion, one hundred eleven million, one hundred ten thousand, two hundred twenty".