104122121 has 2 divisors, whose sum is σ = 104122122. Its totient is φ = 104122120.

The previous prime is 104122103. The next prime is 104122129. The reversal of 104122121 is 121221401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 34633225 = 8336^2 + 5885^2 .

It is a cyclic number.

It is not a de Polignac number, because 104122121 - 2²⁶ = 37013257 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104122096 and 104122105.

It is not a weakly prime, because it can be changed into another prime (104122129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52061060 + 52061061.

It is an arithmetic number, because the mean of its divisors is an integer number (52061061).

Almost surely, 2^104122121 is an apocalyptic number.

It is an amenable number.

104122121 is a deficient number, since it is larger than the sum of its proper divisors (1).

104122121 is an equidigital number, since it uses as much as digits as its factorization.

104122121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 104122121 is about 10204.0247451680. The cubic root of 104122121 is about 470.4509343540.

Adding to 104122121 its reverse (121221401), we get a palindrome (225343522).

The spelling of 104122121 in words is "one hundred four million, one hundred twenty-two thousand, one hundred twenty-one".