212224044452 has 18 divisors (see below), whose sum is σ = 432027519462. Its totient is φ = 90953161824.

The previous prime is 212224044451. The next prime is 212224044481. The reversal of 212224044452 is 254440422212.

212224044452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 207037740196 + 5186304256 = 455014^2 + 72016^2 .

It is not an unprimeable number, because it can be changed into a prime (212224044451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541387673 + ... + 541388064.

It is an arithmetic number, because the mean of its divisors is an integer number (24001528859).

Almost surely, 2^212224044452 is an apocalyptic number.

It is an amenable number.

212224044452 is an abundant number, since it is smaller than the sum of its proper divisors (219803475010).

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

212224044452 is a wasteful number, since it uses less digits than its factorization.

212224044452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082775755 (or 1082775746 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 212224044452 its reverse (254440422212), we get a palindrome (466664466664).

The spelling of 212224044452 in words is "two hundred twelve billion, two hundred twenty-four million, forty-four thousand, four hundred fifty-two".