210101210112 has 88 divisors (see below), whose sum is σ = 561799510272. Its totient is φ = 69808230400.

The previous prime is 210101210063. The next prime is 210101210117. The reversal of 210101210112 is 211012101012.

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

It is not an unprimeable number, because it can be changed into a prime (210101210117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845437 + ... + 1065347.

It is an arithmetic number, because the mean of its divisors is an integer number (6384085344).

Almost surely, 2^210101210112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210101210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280899755136).

210101210112 is an abundant number, since it is smaller than the sum of its proper divisors (351698300160).

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

210101210112 is a wasteful number, since it uses less digits than its factorization.

210101210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220245 (or 220227 counting only the distinct ones).

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

Adding to 210101210112 its reverse (211012101012), we get a palindrome (421113311124).

The spelling of 210101210112 in words is "two hundred ten billion, one hundred one million, two hundred ten thousand, one hundred twelve".