210012112 has 20 divisors (see below), whose sum is σ = 407553156. Its totient is φ = 104837120.

The previous prime is 210012083. The next prime is 210012151. The reversal of 210012112 is 211210012.

It can be written as a sum of positive squares in 2 ways, for example, as 178382736 + 31629376 = 13356^2 + 5624^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 18 + ... + 20494.

Almost surely, 2^210012112 is an apocalyptic number.

It is an amenable number.

210012112 is a deficient number, since it is larger than the sum of its proper divisors (197541044).

210012112 is a wasteful number, since it uses less digits than its factorization.

210012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21126 (or 21120 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 210012112 is about 14491.7946438666. The cubic root of 210012112 is about 594.4036224824.

Adding to 210012112 its reverse (211210012), we get a palindrome (421222124).

The spelling of 210012112 in words is "two hundred ten million, twelve thousand, one hundred twelve".