121127025 has 12 divisors (see below), whose sum is σ = 200263472. Its totient is φ = 64601040.

The previous prime is 121127021. The next prime is 121127047. The reversal of 121127025 is 520721121.

It is not a de Polignac number, because 121127025 - 2² = 121127021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121126992 and 121127010.

It is not an unprimeable number, because it can be changed into a prime (121127021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807439 + ... + 807588.

Almost surely, 2^121127025 is an apocalyptic number.

121127025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121127025 is a deficient number, since it is larger than the sum of its proper divisors (79136447).

121127025 is a wasteful number, since it uses less digits than its factorization.

121127025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615040 (or 1615035 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 121127025 is about 11005.7723490903. The cubic root of 121127025 is about 494.7817627910.

Adding to 121127025 its reverse (520721121), we get a palindrome (641848146).

The spelling of 121127025 in words is "one hundred twenty-one million, one hundred twenty-seven thousand, twenty-five".