41442353221 has 2 divisors, whose sum is σ = 41442353222. Its totient is φ = 41442353220.

The previous prime is 41442353219. The next prime is 41442353231. The reversal of 41442353221 is 12235324414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36105320196 + 5337033025 = 190014^2 + 73055^2 .

It is a cyclic number.

It is not a de Polignac number, because 41442353221 - 2¹ = 41442353219 is a prime.

Together with 41442353219, 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 (41442353231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20721176610 + 20721176611.

It is an arithmetic number, because the mean of its divisors is an integer number (20721176611).

Almost surely, 2^41442353221 is an apocalyptic number.

It is an amenable number.

41442353221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41442353221 is an equidigital number, since it uses as much as digits as its factorization.

41442353221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

Adding to 41442353221 its reverse (12235324414), we get a palindrome (53677677635).

The spelling of 41442353221 in words is "forty-one billion, four hundred forty-two million, three hundred fifty-three thousand, two hundred twenty-one".