41224042421 has 2 divisors, whose sum is σ = 41224042422. Its totient is φ = 41224042420.

The previous prime is 41224042381. The next prime is 41224042439. The reversal of 41224042421 is 12424042214.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21057202321 + 20166840100 = 145111^2 + 142010^2 .

It is a cyclic number.

It is not a de Polignac number, because 41224042421 - 2¹⁸ = 41223780277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41224042021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20612021210 + 20612021211.

It is an arithmetic number, because the mean of its divisors is an integer number (20612021211).

Almost surely, 2^41224042421 is an apocalyptic number.

It is an amenable number.

41224042421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41224042421 is an equidigital number, since it uses as much as digits as its factorization.

41224042421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 41224042421 its reverse (12424042214), we get a palindrome (53648084635).

The spelling of 41224042421 in words is "forty-one billion, two hundred twenty-four million, forty-two thousand, four hundred twenty-one".