41424220421 has 2 divisors, whose sum is σ = 41424220422. Its totient is φ = 41424220420.

The previous prime is 41424220393. The next prime is 41424220423. The reversal of 41424220421 is 12402242414.

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., 30219997921 + 11204222500 = 173839^2 + 105850^2 .

It is a cyclic number.

It is not a de Polignac number, because 41424220421 - 2¹⁴ = 41424204037 is a prime.

Together with 41424220423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41424220423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20712110210 + 20712110211.

It is an arithmetic number, because the mean of its divisors is an integer number (20712110211).

Almost surely, 2^41424220421 is an apocalyptic number.

It is an amenable number.

41424220421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41424220421 is an equidigital number, since it uses as much as digits as its factorization.

41424220421 is an odious number, because the sum of its binary digits is odd.

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

Adding to 41424220421 its reverse (12402242414), we get a palindrome (53826462835).

The spelling of 41424220421 in words is "forty-one billion, four hundred twenty-four million, two hundred twenty thousand, four hundred twenty-one".