243222420042127 has 2 divisors, whose sum is σ = 243222420042128. Its totient is φ = 243222420042126.

The previous prime is 243222420042059. The next prime is 243222420042139. The reversal of 243222420042127 is 721240024222342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243222420042127 is a prime.

It is a super-2 number, since 2×243222420042127² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243222420042157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121611210021063 + 121611210021064.

It is an arithmetic number, because the mean of its divisors is an integer number (121611210021064).

Almost surely, 2^{243222420042127} is an apocalyptic number.

243222420042127 is a deficient number, since it is larger than the sum of its proper divisors (1).

243222420042127 is an equidigital number, since it uses as much as digits as its factorization.

243222420042127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 37.

Adding to 243222420042127 its reverse (721240024222342), we get a palindrome (964462444264469).

The spelling of 243222420042127 in words is "two hundred forty-three trillion, two hundred twenty-two billion, four hundred twenty million, forty-two thousand, one hundred twenty-seven".