42201334121 has 2 divisors, whose sum is σ = 42201334122. Its totient is φ = 42201334120.

The previous prime is 42201334057. The next prime is 42201334139. The reversal of 42201334121 is 12143310224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23140494400 + 19060839721 = 152120^2 + 138061^2 .

It is a cyclic number.

It is not a de Polignac number, because 42201334121 - 2⁶ = 42201334057 is a prime.

It is not a weakly prime, because it can be changed into another prime (42201334181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100667060 + 21100667061.

It is an arithmetic number, because the mean of its divisors is an integer number (21100667061).

Almost surely, 2^42201334121 is an apocalyptic number.

It is an amenable number.

42201334121 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201334121 is an equidigital number, since it uses as much as digits as its factorization.

42201334121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 42201334121 its reverse (12143310224), we get a palindrome (54344644345).

The spelling of 42201334121 in words is "forty-two billion, two hundred one million, three hundred thirty-four thousand, one hundred twenty-one".