42221412241 has 2 divisors, whose sum is σ = 42221412242. Its totient is φ = 42221412240.

The previous prime is 42221412221. The next prime is 42221412257. The reversal of 42221412241 is 14221412224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28941154641 + 13280257600 = 170121^2 + 115240^2 .

It is a cyclic number.

It is not a de Polignac number, because 42221412241 - 2¹⁹ = 42220887953 is a prime.

It is not a weakly prime, because it can be changed into another prime (42221412221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110706120 + 21110706121.

It is an arithmetic number, because the mean of its divisors is an integer number (21110706121).

Almost surely, 2^42221412241 is an apocalyptic number.

It is an amenable number.

42221412241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42221412241 is an equidigital number, since it uses as much as digits as its factorization.

42221412241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2048, while the sum is 25.

Adding to 42221412241 its reverse (14221412224), we get a palindrome (56442824465).

The spelling of 42221412241 in words is "forty-two billion, two hundred twenty-one million, four hundred twelve thousand, two hundred forty-one".