210100112020 has 48 divisors (see below), whose sum is σ = 445423179600. Its totient is φ = 83240321024.

The previous prime is 210100112011. The next prime is 210100112041. The reversal of 210100112020 is 20211001012.

210100112020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5711127184 + 204388984836 = 75572^2 + 452094^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 210100111988 and 210100112006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144872 + ... + 1315648.

It is an arithmetic number, because the mean of its divisors is an integer number (9279649575).

Almost surely, 2^210100112020 is an apocalyptic number.

210100112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210100112020 is an abundant number, since it is smaller than the sum of its proper divisors (235323067580).

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

210100112020 is a wasteful number, since it uses less digits than its factorization.

210100112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171372 (or 171370 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210100112020 its reverse (20211001012), we get a palindrome (230311113032).

The spelling of 210100112020 in words is "two hundred ten billion, one hundred million, one hundred twelve thousand, twenty".