122232181 has 2 divisors, whose sum is σ = 122232182. Its totient is φ = 122232180.

The previous prime is 122232179. The next prime is 122232221. The reversal of 122232181 is 181232221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121749156 + 483025 = 11034^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 122232181 - 2¹ = 122232179 is a prime.

It is a super-2 number, since 2×122232181² = 29881412144033522, which contains 22 as substring.

Together with 122232179, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122232161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61116090 + 61116091.

It is an arithmetic number, because the mean of its divisors is an integer number (61116091).

Almost surely, 2^122232181 is an apocalyptic number.

It is an amenable number.

122232181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122232181 is an equidigital number, since it uses as much as digits as its factorization.

122232181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 122232181 is about 11055.8663613486. The cubic root of 122232181 is about 496.2819960885.

The spelling of 122232181 in words is "one hundred twenty-two million, two hundred thirty-two thousand, one hundred eighty-one".