122555240244263 has 2 divisors, whose sum is σ = 122555240244264. Its totient is φ = 122555240244262.

The previous prime is 122555240244223. The next prime is 122555240244287. The reversal of 122555240244263 is 362442042555221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122555240244263 - 2¹⁰ = 122555240243239 is a prime.

It is a super-2 number, since 2×122555240244263² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122555240244223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61277620122131 + 61277620122132.

It is an arithmetic number, because the mean of its divisors is an integer number (61277620122132).

Almost surely, 2^{122555240244263} is an apocalyptic number.

122555240244263 is a deficient number, since it is larger than the sum of its proper divisors (1).

122555240244263 is an equidigital number, since it uses as much as digits as its factorization.

122555240244263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608000, while the sum is 47.

Adding to 122555240244263 its reverse (362442042555221), we get a palindrome (484997282799484).

The spelling of 122555240244263 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, two hundred forty million, two hundred forty-four thousand, two hundred sixty-three".