121844954124 has 18 divisors (see below), whose sum is σ = 307996967460. Its totient is φ = 40614984696.

The previous prime is 121844954117. The next prime is 121844954129. The reversal of 121844954124 is 421459448121.

121844954124 is a `hidden beast` number, since 1 + 2 + 1 + 84 + 4 + 9 + 541 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 121844954124.

It is not an unprimeable number, because it can be changed into a prime (121844954129) 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 5 ways as a sum of consecutive naturals, for example, 1692290994 + ... + 1692291065.

Almost surely, 2^121844954124 is an apocalyptic number.

It is an amenable number.

121844954124 is an abundant number, since it is smaller than the sum of its proper divisors (186152013336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121844954124 is a wasteful number, since it uses less digits than its factorization.

121844954124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384582069 (or 3384582064 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The spelling of 121844954124 in words is "one hundred twenty-one billion, eight hundred forty-four million, nine hundred fifty-four thousand, one hundred twenty-four".