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BaseRepresentation
bin11001010010010…
…00101110000100
3112210010022111210
430221020232010
5413300011322
633014131420
75153623056
oct1451105604
9483108453
10212110212
11a98045a6
125b050b70
1334c37502
14202558d6
151394c70c
hexca48b84

212110212 has 12 divisors (see below), whose sum is σ = 494923856. Its totient is φ = 70703400.

The previous prime is 212110211. The next prime is 212110259. The reversal of 212110212 is 212011212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 17675851 = 212110212 / (2 + 1 + 2 + 1 + 1 + 0 + 2 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (212110211) by changing a digit.

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, 8837914 + ... + 8837937.

Almost surely, 2212110212 is an apocalyptic number.

It is an amenable number.

212110212 is an abundant number, since it is smaller than the sum of its proper divisors (282813644).

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

212110212 is a wasteful number, since it uses less digits than its factorization.

212110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17675858 (or 17675856 counting only the distinct ones).

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

The square root of 212110212 is about 14564.0039824219. The cubic root of 212110212 is about 596.3765056435.

Adding to 212110212 its reverse (212011212), we get a palindrome (424121424).

The spelling of 212110212 in words is "two hundred twelve million, one hundred ten thousand, two hundred twelve".