122542352171 has 2 divisors, whose sum is σ = 122542352172. Its totient is φ = 122542352170.

The previous prime is 122542352143. The next prime is 122542352227. The reversal of 122542352171 is 171253245221.

It is a weak prime.

It is an emirp because it is prime and its reverse (171253245221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122542352171 - 2¹⁰ = 122542351147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (122542352971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61271176085 + 61271176086.

It is an arithmetic number, because the mean of its divisors is an integer number (61271176086).

Almost surely, 2^122542352171 is an apocalyptic number.

122542352171 is a deficient number, since it is larger than the sum of its proper divisors (1).

122542352171 is an equidigital number, since it uses as much as digits as its factorization.

122542352171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

Adding to 122542352171 its reverse (171253245221), we get a palindrome (293795597392).

The spelling of 122542352171 in words is "one hundred twenty-two billion, five hundred forty-two million, three hundred fifty-two thousand, one hundred seventy-one".