2211100212020 has 96 divisors (see below), whose sum is σ = 5397651302400. Its totient is φ = 745095049344.

The previous prime is 2211100212017. The next prime is 2211100212077. The reversal of 2211100212020 is 202120011122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2211100211986 and 2211100212004.

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 31 ways as a sum of consecutive naturals, for example, 46719689 + ... + 46766991.

It is an arithmetic number, because the mean of its divisors is an integer number (56225534400).

Almost surely, 2^{2211100212020} is an apocalyptic number.

2211100212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211100212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2698825651200).

2211100212020 is an abundant number, since it is smaller than the sum of its proper divisors (3186551090380).

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

2211100212020 is a wasteful number, since it uses less digits than its factorization.

2211100212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53037 (or 53035 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2211100212020 its reverse (202120011122), we get a palindrome (2413220223142).

The spelling of 2211100212020 in words is "two trillion, two hundred eleven billion, one hundred million, two hundred twelve thousand, twenty".