122011222171 has 2 divisors, whose sum is σ = 122011222172. Its totient is φ = 122011222170.

The previous prime is 122011222141. The next prime is 122011222243. The reversal of 122011222171 is 171222110221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122011222171 - 2¹⁷ = 122011091099 is a prime.

It is a super-2 number, since 2×122011222171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122011222141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005611085 + 61005611086.

It is an arithmetic number, because the mean of its divisors is an integer number (61005611086).

Almost surely, 2^122011222171 is an apocalyptic number.

122011222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011222171 is an equidigital number, since it uses as much as digits as its factorization.

122011222171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 122011222171 its reverse (171222110221), we get a palindrome (293233332392).

The spelling of 122011222171 in words is "one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one hundred seventy-one".