122122202171 has 2 divisors, whose sum is σ = 122122202172. Its totient is φ = 122122202170.

The previous prime is 122122202117. The next prime is 122122202221. The reversal of 122122202171 is 171202221221.

Together with previous prime (122122202117) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (171202221221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122122202171 - 2⁶ = 122122202107 is a prime.

It is a super-2 number, since 2×122122202171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122122202771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061101085 + 61061101086.

It is an arithmetic number, because the mean of its divisors is an integer number (61061101086).

Almost surely, 2^122122202171 is an apocalyptic number.

122122202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

122122202171 is an equidigital number, since it uses as much as digits as its factorization.

122122202171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 122122202171 its reverse (171202221221), we get a palindrome (293324423392).

The spelling of 122122202171 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, one hundred seventy-one".