121281059075 has 24 divisors (see below), whose sum is σ = 171193257216. Its totient is φ = 84369428000.

The previous prime is 121281059033. The next prime is 121281059077. The reversal of 121281059075 is 570950182121.

It is not a de Polignac number, because 121281059075 - 2¹⁶ = 121280993539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121281059077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9581111 + ... + 9593760.

It is an arithmetic number, because the mean of its divisors is an integer number (7133052384).

Almost surely, 2^121281059075 is an apocalyptic number.

121281059075 is a deficient number, since it is larger than the sum of its proper divisors (49912198141).

121281059075 is a wasteful number, since it uses less digits than its factorization.

121281059075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19174915 (or 19174910 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 121281059075 in words is "one hundred twenty-one billion, two hundred eighty-one million, fifty-nine thousand, seventy-five".