122204161 has 2 divisors, whose sum is σ = 122204162. Its totient is φ = 122204160.

The previous prime is 122204153. The next prime is 122204171. The reversal of 122204161 is 161402221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 52998400 = 8319^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 122204161 - 2³ = 122204153 is a prime.

It is not a weakly prime, because it can be changed into another prime (122204101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61102080 + 61102081.

It is an arithmetic number, because the mean of its divisors is an integer number (61102081).

Almost surely, 2^122204161 is an apocalyptic number.

It is an amenable number.

122204161 is a deficient number, since it is larger than the sum of its proper divisors (1).

122204161 is an equidigital number, since it uses as much as digits as its factorization.

122204161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 122204161 is about 11054.5990881624. The cubic root of 122204161 is about 496.2440713126.

Adding to 122204161 its reverse (161402221), we get a palindrome (283606382).

The spelling of 122204161 in words is "one hundred twenty-two million, two hundred four thousand, one hundred sixty-one".