212227332 has 12 divisors (see below), whose sum is σ = 495197136. Its totient is φ = 70742440.

The previous prime is 212227319. The next prime is 212227339. The reversal of 212227332 is 233722212.

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

It is not an unprimeable number, because it can be changed into a prime (212227339) 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, 8842794 + ... + 8842817.

It is an arithmetic number, because the mean of its divisors is an integer number (41266428).

Almost surely, 2^212227332 is an apocalyptic number.

It is an amenable number.

212227332 is an abundant number, since it is smaller than the sum of its proper divisors (282969804).

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

212227332 is a wasteful number, since it uses less digits than its factorization.

212227332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17685618 (or 17685616 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 212227332 is about 14568.0242998150. The cubic root of 212227332 is about 596.4862516789.

Adding to 212227332 its reverse (233722212), we get a palindrome (445949544).

The spelling of 212227332 in words is "two hundred twelve million, two hundred twenty-seven thousand, three hundred thirty-two".