212244552 has 96 divisors (see below), whose sum is σ = 646027200. Its totient is φ = 62460288.

The previous prime is 212244547. The next prime is 212244553. The reversal of 212244552 is 255442212.

212244552 is a `hidden beast` number, since 212 + 2 + 445 + 5 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (212244553) 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 23 ways as a sum of consecutive naturals, for example, 16599 + ... + 26457.

It is an arithmetic number, because the mean of its divisors is an integer number (6729450).

Almost surely, 2^212244552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212244552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323013600).

212244552 is an abundant number, since it is smaller than the sum of its proper divisors (433782648).

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

212244552 is a wasteful number, since it uses less digits than its factorization.

212244552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907 (or 9900 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 212244552 is about 14568.6153082577. The cubic root of 212244552 is about 596.5023840896.

Adding to 212244552 its reverse (255442212), we get a palindrome (467686764).

The spelling of 212244552 in words is "two hundred twelve million, two hundred forty-four thousand, five hundred fifty-two".