41222821 has 2 divisors, whose sum is σ = 41222822. Its totient is φ = 41222820.

The previous prime is 41222801. The next prime is 41222827. The reversal of 41222821 is 12822214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34093921 + 7128900 = 5839^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 41222821 - 2¹⁹ = 40698533 is a prime.

It is a Chen prime.

It is the 6421-st Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 41222792 and 41222801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41222827) by changing a digit.

It is a nontrivial repunit in base 6420.

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 as a sum of consecutive naturals, namely, 20611410 + 20611411.

It is an arithmetic number, because the mean of its divisors is an integer number (20611411).

Almost surely, 2^41222821 is an apocalyptic number.

It is an amenable number.

41222821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41222821 is an equidigital number, since it uses as much as digits as its factorization.

41222821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 22.

The square root of 41222821 is about 6420.5000584067. The cubic root of 41222821 is about 345.4452586083.

The spelling of 41222821 in words is "forty-one million, two hundred twenty-two thousand, eight hundred twenty-one".