212224031641 has 2 divisors, whose sum is σ = 212224031642. Its totient is φ = 212224031640.

The previous prime is 212224031581. The next prime is 212224031647. The reversal of 212224031641 is 146130422212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127857020041 + 84367011600 = 357571^2 + 290460^2 .

It is a cyclic number.

It is not a de Polignac number, because 212224031641 - 2³⁵ = 177864293273 is a prime.

It is not a weakly prime, because it can be changed into another prime (212224031647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106112015820 + 106112015821.

It is an arithmetic number, because the mean of its divisors is an integer number (106112015821).

Almost surely, 2^212224031641 is an apocalyptic number.

It is an amenable number.

212224031641 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224031641 is an equidigital number, since it uses as much as digits as its factorization.

212224031641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 212224031641 its reverse (146130422212), we get a palindrome (358354453853).

The spelling of 212224031641 in words is "two hundred twelve billion, two hundred twenty-four million, thirty-one thousand, six hundred forty-one".