210442012 has 96 divisors (see below), whose sum is σ = 438939648. Its totient is φ = 87360000.

The previous prime is 210442007. The next prime is 210442021. The reversal of 210442012 is 210244012.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2963937 + ... + 2964007.

It is an arithmetic number, because the mean of its divisors is an integer number (4572288).

Almost surely, 2^210442012 is an apocalyptic number.

210442012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210442012 is an abundant number, since it is smaller than the sum of its proper divisors (228497636).

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

210442012 is a wasteful number, since it uses less digits than its factorization.

210442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 210442012 is about 14506.6195924481. The cubic root of 210442012 is about 594.8089323657.

Adding to 210442012 its reverse (210244012), we get a palindrome (420686024).

The spelling of 210442012 in words is "two hundred ten million, four hundred forty-two thousand, twelve".