120009225 has 96 divisors (see below), whose sum is σ = 244270080. Its totient is φ = 50768640.

The previous prime is 120009217. The next prime is 120009229. The reversal of 120009225 is 522900021.

It is not a de Polignac number, because 120009225 - 2³ = 120009217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

120009225 is a modest number, since divided by 9225 gives 1200 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120009229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 528562 + ... + 528788.

It is an arithmetic number, because the mean of its divisors is an integer number (2544480).

Almost surely, 2^120009225 is an apocalyptic number.

120009225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120009225 is an abundant number, since it is smaller than the sum of its proper divisors (124260855).

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

120009225 is a wasteful number, since it uses less digits than its factorization.

120009225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 120009225 is about 10954.8722037274. The cubic root of 120009225 is about 493.2550538791.

Adding to 120009225 its reverse (522900021), we get a palindrome (642909246).

The spelling of 120009225 in words is "one hundred twenty million, nine thousand, two hundred twenty-five".