122236161 has 12 divisors (see below), whose sum is σ = 164159856. Its totient is φ = 80905800.

The previous prime is 122236117. The next prime is 122236181. The reversal of 122236161 is 161632221.

It is not a de Polignac number, because 122236161 - 2⁶ = 122236097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122236111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67510 + ... + 69296.

It is an arithmetic number, because the mean of its divisors is an integer number (13679988).

Almost surely, 2^122236161 is an apocalyptic number.

It is an amenable number.

122236161 is a deficient number, since it is larger than the sum of its proper divisors (41923695).

122236161 is an equidigital number, since it uses as much as digits as its factorization.

122236161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092 (or 1941 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 122236161 is about 11056.0463548232. The cubic root of 122236161 is about 496.2873825067.

Adding to 122236161 its reverse (161632221), we get a palindrome (283868382).

The spelling of 122236161 in words is "one hundred twenty-two million, two hundred thirty-six thousand, one hundred sixty-one".