41822789221 has 2 divisors, whose sum is σ = 41822789222. Its totient is φ = 41822789220.

The previous prime is 41822789219. The next prime is 41822789237. The reversal of 41822789221 is 12298722814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40765629025 + 1057160196 = 201905^2 + 32514^2 .

It is a cyclic number.

It is not a de Polignac number, because 41822789221 - 2¹ = 41822789219 is a prime.

Together with 41822789219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41822789291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20911394610 + 20911394611.

It is an arithmetic number, because the mean of its divisors is an integer number (20911394611).

Almost surely, 2^41822789221 is an apocalyptic number.

It is an amenable number.

41822789221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41822789221 is an equidigital number, since it uses as much as digits as its factorization.

41822789221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 46.

The spelling of 41822789221 in words is "forty-one billion, eight hundred twenty-two million, seven hundred eighty-nine thousand, two hundred twenty-one".