210101112 has 48 divisors (see below), whose sum is σ = 612797640. Its totient is φ = 64646208.

The previous prime is 210101083. The next prime is 210101123. The reversal of 210101112 is 211101012.

It is a happy number.

210101112 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 = 210101094 and 210101103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111298 + ... + 113169.

Almost surely, 2^210101112 is an apocalyptic number.

It is an amenable number.

210101112 is an abundant number, since it is smaller than the sum of its proper divisors (402696528).

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

210101112 is a wasteful number, since it uses less digits than its factorization.

210101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224492 (or 224485 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 210101112 is about 14494.8650217931. The cubic root of 210101112 is about 594.4875770865.

Adding to 210101112 its reverse (211101012), we get a palindrome (421202124).

It can be divided in two parts, 21010 and 1112, that added together give a palindrome (22122).

The spelling of 210101112 in words is "two hundred ten million, one hundred one thousand, one hundred twelve".