2211111100020 has 96 divisors (see below), whose sum is σ = 6382616663808. Its totient is φ = 571512195072.

The previous prime is 2211111100019. The next prime is 2211111100043. The reversal of 2211111100020 is 200011111122.

2211111100020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 2211111099969 and 2211111100005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1309669 + ... + 2477388.

It is an arithmetic number, because the mean of its divisors is an integer number (66485590248).

Almost surely, 2^{2211111100020} is an apocalyptic number.

2211111100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211111100020 is an abundant number, since it is smaller than the sum of its proper divisors (4171505563788).

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

2211111100020 is a wasteful number, since it uses less digits than its factorization.

2211111100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787369 (or 3787367 counting only the distinct ones).

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

Adding to 2211111100020 its reverse (200011111122), we get a palindrome (2411122211142).

The spelling of 2211111100020 in words is "two trillion, two hundred eleven billion, one hundred eleven million, one hundred thousand, twenty".