211022111100020 has 96 divisors (see below), whose sum is σ = 490406471331840. Its totient is φ = 75633768995840.

The previous prime is 211022111100013. The next prime is 211022111100049. The reversal of 211022111100020 is 20001111220112.

It is a junction number, because it is equal to n+sod(n) for n = 211022111099968 and 211022111100004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10792244 + ... + 23205963.

It is an arithmetic number, because the mean of its divisors is an integer number (5108400743040).

Almost surely, 2^{211022111100020} is an apocalyptic number.

211022111100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022111100020 is an abundant number, since it is smaller than the sum of its proper divisors (279384360231820).

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

211022111100020 is a wasteful number, since it uses less digits than its factorization.

211022111100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33998633 (or 33998631 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211022111100020 its reverse (20001111220112), we get a palindrome (231023222320132).

The spelling of 211022111100020 in words is "two hundred eleven trillion, twenty-two billion, one hundred eleven million, one hundred thousand, twenty".