122001161 has 4 divisors (see below), whose sum is σ = 122035524. Its totient is φ = 121966800.

The previous prime is 122001149. The next prime is 122001167. The reversal of 122001161 is 161100221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12924025 + 109077136 = 3595^2 + 10444^2 .

It is a cyclic number.

It is not a de Polignac number, because 122001161 - 2¹⁴ = 121984777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122001167) 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 3 ways as a sum of consecutive naturals, for example, 11150 + ... + 19191.

It is an arithmetic number, because the mean of its divisors is an integer number (30508881).

Almost surely, 2^122001161 is an apocalyptic number.

It is an amenable number.

122001161 is a deficient number, since it is larger than the sum of its proper divisors (34363).

122001161 is an equidigital number, since it uses as much as digits as its factorization.

122001161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34362.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 122001161 is about 11045.4135730628. The cubic root of 122001161 is about 495.9691396534.

Adding to 122001161 its reverse (161100221), we get a palindrome (283101382).

The spelling of 122001161 in words is "one hundred twenty-two million, one thousand, one hundred sixty-one".