210001112112 has 160 divisors (see below), whose sum is σ = 597973155840. Its totient is φ = 62976482560.

The previous prime is 210001112039. The next prime is 210001112141. The reversal of 210001112112 is 211211100012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102991189 + ... + 102993227.

It is an arithmetic number, because the mean of its divisors is an integer number (3737332224).

Almost surely, 2^210001112112 is an apocalyptic number.

210001112112 is a gapful number since it is divisible by the number (22) 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 210001112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298986577920).

210001112112 is an abundant number, since it is smaller than the sum of its proper divisors (387972043728).

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

210001112112 is a wasteful number, since it uses less digits than its factorization.

210001112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210001112112 its reverse (211211100012), we get a palindrome (421212212124).

The spelling of 210001112112 in words is "two hundred ten billion, one million, one hundred twelve thousand, one hundred twelve".