210112000020 has 144 divisors (see below), whose sum is σ = 710033884560. Its totient is φ = 49936416768.

The previous prime is 210112000003. The next prime is 210112000039. The reversal of 210112000020 is 20000211012.

It can be written as a sum of positive squares in 8 ways, for example, as 63180844164 + 146931155856 = 251358^2 + 383316^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210111999966 and 210112000011.

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 47 ways as a sum of consecutive naturals, for example, 1480269 + ... + 1615988.

It is an arithmetic number, because the mean of its divisors is an integer number (4930790865).

Almost surely, 2^210112000020 is an apocalyptic number.

210112000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112000020 is an abundant number, since it is smaller than the sum of its proper divisors (499921884540).

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

210112000020 is a wasteful number, since it uses less digits than its factorization.

210112000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096314 (or 3096309 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210112000020 its reverse (20000211012), we get a palindrome (230112211032).

The spelling of 210112000020 in words is "two hundred ten billion, one hundred twelve million, twenty", and thus it is an aban number.