211001112020 has 12 divisors (see below), whose sum is σ = 443102335284. Its totient is φ = 84400444800.

The previous prime is 211001112013. The next prime is 211001112121. The reversal of 211001112020 is 20211100112.

It can be written as a sum of positive squares in 2 ways, for example, as 153552692164 + 57448419856 = 391858^2 + 239684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211001111992 and 211001112010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5275027781 + ... + 5275027820.

It is an arithmetic number, because the mean of its divisors is an integer number (36925194607).

Almost surely, 2^211001112020 is an apocalyptic number.

211001112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211001112020 is an abundant number, since it is smaller than the sum of its proper divisors (232101223264).

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

211001112020 is a wasteful number, since it uses less digits than its factorization.

211001112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550055610 (or 10550055608 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211001112020 its reverse (20211100112), we get a palindrome (231212212132).

The spelling of 211001112020 in words is "two hundred eleven billion, one million, one hundred twelve thousand, twenty".