121081125 has 64 divisors (see below), whose sum is σ = 222393600. Its totient is φ = 58016000.

The previous prime is 121081111. The next prime is 121081171. The reversal of 121081125 is 521180121.

It is not a de Polignac number, because 121081125 - 2¹⁰ = 121080101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 614527 + ... + 614723.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^121081125 is an apocalyptic number.

121081125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121081125 is a deficient number, since it is larger than the sum of its proper divisors (101312475).

121081125 is a wasteful number, since it uses less digits than its factorization.

121081125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 121081125 is about 11003.6868821318. The cubic root of 121081125 is about 494.7192571909.

The spelling of 121081125 in words is "one hundred twenty-one million, eighty-one thousand, one hundred twenty-five".