121025120 has 48 divisors (see below), whose sum is σ = 295792560. Its totient is φ = 46738944.

The previous prime is 121025111. The next prime is 121025143. The reversal of 121025120 is 21520121.

It is a junction number, because it is equal to n+sod(n) for n = 121025095 and 121025104.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8402 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (6162345).

Almost surely, 2^121025120 is an apocalyptic number.

121025120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121025120 is an abundant number, since it is smaller than the sum of its proper divisors (174767440).

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

121025120 is a wasteful number, since it uses less digits than its factorization.

121025120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26127 (or 26119 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 121025120 is about 11001.1417589267. The cubic root of 121025120 is about 494.6429694267.

Adding to 121025120 its reverse (21520121), we get a palindrome (142545241).

The spelling of 121025120 in words is "one hundred twenty-one million, twenty-five thousand, one hundred twenty".