121844954125 has 16 divisors (see below), whose sum is σ = 152076673008. Its totient is φ = 97466880000.

The previous prime is 121844954117. The next prime is 121844954129. The reversal of 121844954125 is 521459448121.

It can be written as a sum of positive squares in 8 ways, for example, as 20637620964 + 101207333161 = 143658^2 + 318131^2 .

It is not a de Polignac number, because 121844954125 - 2³ = 121844954117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121844954129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514925 + ... + 1593325.

It is an arithmetic number, because the mean of its divisors is an integer number (9504792063).

Almost surely, 2^121844954125 is an apocalyptic number.

It is an amenable number.

121844954125 is a deficient number, since it is larger than the sum of its proper divisors (30231718883).

121844954125 is an equidigital number, since it uses as much as digits as its factorization.

121844954125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90849 (or 90839 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The spelling of 121844954125 in words is "one hundred twenty-one billion, eight hundred forty-four million, nine hundred fifty-four thousand, one hundred twenty-five".