210212112 has 40 divisors (see below), whose sum is σ = 592417440. Its totient is φ = 63700480.

The previous prime is 210212047. The next prime is 210212131. The reversal of 210212112 is 211212012.

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

It is an unprimeable number.

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, 198537 + ... + 199592.

It is an arithmetic number, because the mean of its divisors is an integer number (14810436).

Almost surely, 2^210212112 is an apocalyptic number.

210212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210212112 is an abundant number, since it is smaller than the sum of its proper divisors (382205328).

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

210212112 is a wasteful number, since it uses less digits than its factorization.

210212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398151 (or 398145 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 210212112 is about 14498.6934583776. The cubic root of 210212112 is about 594.5922512963.

Adding to 210212112 its reverse (211212012), we get a palindrome (421424124).

The spelling of 210212112 in words is "two hundred ten million, two hundred twelve thousand, one hundred twelve".