41225331221 has 2 divisors, whose sum is σ = 41225331222. Its totient is φ = 41225331220.

The previous prime is 41225331209. The next prime is 41225331223. The reversal of 41225331221 is 12213352214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37032768721 + 4192562500 = 192439^2 + 64750^2 .

It is a cyclic number.

It is not a de Polignac number, because 41225331221 - 2²² = 41221136917 is a prime.

It is a Sophie Germain prime.

Together with 41225331223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41225331223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20612665610 + 20612665611.

It is an arithmetic number, because the mean of its divisors is an integer number (20612665611).

Almost surely, 2^41225331221 is an apocalyptic number.

It is an amenable number.

41225331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41225331221 is an equidigital number, since it uses as much as digits as its factorization.

41225331221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

Adding to 41225331221 its reverse (12213352214), we get a palindrome (53438683435).

The spelling of 41225331221 in words is "forty-one billion, two hundred twenty-five million, three hundred thirty-one thousand, two hundred twenty-one".