212224042637 has 2 divisors, whose sum is σ = 212224042638. Its totient is φ = 212224042636.

The previous prime is 212224042619. The next prime is 212224042643. The reversal of 212224042637 is 736240422212.

212224042637 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., 153240148681 + 58983893956 = 391459^2 + 242866^2 .

It is a cyclic number.

It is not a de Polignac number, because 212224042637 - 2¹⁰ = 212224041613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212224042597 and 212224042606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212224048637) 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, 106112021318 + 106112021319.

It is an arithmetic number, because the mean of its divisors is an integer number (106112021319).

Almost surely, 2^212224042637 is an apocalyptic number.

It is an amenable number.

212224042637 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224042637 is an equidigital number, since it uses as much as digits as its factorization.

212224042637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

Adding to 212224042637 its reverse (736240422212), we get a palindrome (948464464849).

The spelling of 212224042637 in words is "two hundred twelve billion, two hundred twenty-four million, forty-two thousand, six hundred thirty-seven".