122268181 has 8 divisors (see below), whose sum is σ = 142587200. Its totient is φ = 104801004.

The previous prime is 122268163. The next prime is 122268227. The reversal of 122268181 is 181862221.

It is not a de Polignac number, because 122268181 - 2⁵ = 122268149 is a prime.

It is a super-2 number, since 2×122268181² = 29899016170097522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122268101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177891 + ... + 178576.

It is an arithmetic number, because the mean of its divisors is an integer number (17823400).

Almost surely, 2^122268181 is an apocalyptic number.

It is an amenable number.

122268181 is a deficient number, since it is larger than the sum of its proper divisors (20319019).

122268181 is an frugal number, since it uses more digits than its factorization.

122268181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356488 (or 356474 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 122268181 is about 11057.4943364218. The cubic root of 122268181 is about 496.3307132049.

The spelling of 122268181 in words is "one hundred twenty-two million, two hundred sixty-eight thousand, one hundred eighty-one".