121255441 has 24 divisors (see below), whose sum is σ = 134392320. Its totient is φ = 109304832.

The previous prime is 121255391. The next prime is 121255487. The reversal of 121255441 is 144552121.

It is not a de Polignac number, because 121255441 - 2¹¹ = 121253393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121225441) 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 23 ways as a sum of consecutive naturals, for example, 1073001 + ... + 1073113.

It is an arithmetic number, because the mean of its divisors is an integer number (5599680).

Almost surely, 2^121255441 is an apocalyptic number.

It is an amenable number.

121255441 is a deficient number, since it is larger than the sum of its proper divisors (13136879).

121255441 is a wasteful number, since it uses less digits than its factorization.

121255441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 256 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 121255441 is about 11011.6048330840. The cubic root of 121255441 is about 494.9565530006.

The spelling of 121255441 in words is "one hundred twenty-one million, two hundred fifty-five thousand, four hundred forty-one".