210112220 has 24 divisors (see below), whose sum is σ = 441555408. Its totient is φ = 83984000.

The previous prime is 210112213. The next prime is 210112223. The reversal of 210112220 is 22211012.

It is a happy number.

210112220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33320 + ... + 39120.

It is an arithmetic number, because the mean of its divisors is an integer number (18398142).

Almost surely, 2^210112220 is an apocalyptic number.

210112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112220 is an abundant number, since it is smaller than the sum of its proper divisors (231443188).

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

210112220 is a wasteful number, since it uses less digits than its factorization.

210112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621 (or 7619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 210112220 is about 14495.2481869059. The cubic root of 210112220 is about 594.4980537114.

Adding to 210112220 its reverse (22211012), we get a palindrome (232323232).

The spelling of 210112220 in words is "two hundred ten million, one hundred twelve thousand, two hundred twenty".