212224044449 has 2 divisors, whose sum is σ = 212224044450. Its totient is φ = 212224044448.

The previous prime is 212224044343. The next prime is 212224044451. The reversal of 212224044449 is 944440422212.

212224044449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210376334224 + 1847710225 = 458668^2 + 42985^2 .

It is a cyclic number.

It is not a de Polignac number, because 212224044449 - 2²⁸ = 211955608993 is a prime.

It is a super-2 number, since 2×212224044449² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 212224044451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212224044499) 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 as a sum of consecutive naturals, namely, 106112022224 + 106112022225.

It is an arithmetic number, because the mean of its divisors is an integer number (106112022225).

Almost surely, 2^212224044449 is an apocalyptic number.

It is an amenable number.

212224044449 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224044449 is an equidigital number, since it uses as much as digits as its factorization.

212224044449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 212224044449 in words is "two hundred twelve billion, two hundred twenty-four million, forty-four thousand, four hundred forty-nine".