122227161 has 16 divisors (see below), whose sum is σ = 197207424. Its totient is φ = 65735424.

The previous prime is 122227117. The next prime is 122227177. The reversal of 122227161 is 161722221.

It is not a de Polignac number, because 122227161 - 2⁷ = 122227033 is a prime.

It is a super-2 number, since 2×122227161² = 29878957772239842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122227111) 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 15 ways as a sum of consecutive naturals, for example, 170830 + ... + 171543.

It is an arithmetic number, because the mean of its divisors is an integer number (12325464).

Almost surely, 2^122227161 is an apocalyptic number.

It is an amenable number.

122227161 is a deficient number, since it is larger than the sum of its proper divisors (74980263).

122227161 is a wasteful number, since it uses less digits than its factorization.

122227161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342400.

The product of its digits is 672, while the sum is 24.

The square root of 122227161 is about 11055.6393302242. The cubic root of 122227161 is about 496.2752019974.

Adding to 122227161 its reverse (161722221), we get a palindrome (283949382).

The spelling of 122227161 in words is "one hundred twenty-two million, two hundred twenty-seven thousand, one hundred sixty-one".