120121025 has 6 divisors (see below), whose sum is σ = 148950102. Its totient is φ = 96096800.

The previous prime is 120121013. The next prime is 120121033. The reversal of 120121025 is 520121021.

It can be written as a sum of positive squares in 3 ways, for example, as 31629376 + 88491649 = 5624^2 + 9407^2 .

It is not a de Polignac number, because 120121025 - 2⁴ = 120121009 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2402396 + ... + 2402445.

It is an arithmetic number, because the mean of its divisors is an integer number (24825017).

Almost surely, 2^120121025 is an apocalyptic number.

It is an amenable number.

120121025 is a deficient number, since it is larger than the sum of its proper divisors (28829077).

120121025 is an equidigital number, since it uses as much as digits as its factorization.

120121025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804851 (or 4804846 counting only the distinct ones).

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

The square root of 120121025 is about 10959.9737682168. The cubic root of 120121025 is about 493.4081776614.

Adding to 120121025 its reverse (520121021), we get a palindrome (640242046).

The spelling of 120121025 in words is "one hundred twenty million, one hundred twenty-one thousand, twenty-five".