121833121 has 2 divisors, whose sum is σ = 121833122. Its totient is φ = 121833120.

The previous prime is 121833113. The next prime is 121833133. The reversal of 121833121 is 121338121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 43758225 = 8836^2 + 6615^2 .

It is a cyclic number.

It is not a de Polignac number, because 121833121 - 2³ = 121833113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121833092 and 121833101.

It is not a weakly prime, because it can be changed into another prime (121833191) 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 as a sum of consecutive naturals, namely, 60916560 + 60916561.

It is an arithmetic number, because the mean of its divisors is an integer number (60916561).

Almost surely, 2^121833121 is an apocalyptic number.

It is an amenable number.

121833121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121833121 is an equidigital number, since it uses as much as digits as its factorization.

121833121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 121833121 is about 11037.8041747442. The cubic root of 121833121 is about 495.7413250238.

The spelling of 121833121 in words is "one hundred twenty-one million, eight hundred thirty-three thousand, one hundred twenty-one".