120521225 has 12 divisors (see below), whose sum is σ = 163032720. Its totient is φ = 87651600.

The previous prime is 120521221. The next prime is 120521249. The reversal of 120521225 is 522125021.

It is a happy number.

It is not a de Polignac number, because 120521225 - 2² = 120521221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120521197 and 120521206.

It is not an unprimeable number, because it can be changed into a prime (120521221) 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, 218855 + ... + 219404.

It is an arithmetic number, because the mean of its divisors is an integer number (13586060).

Almost surely, 2^120521225 is an apocalyptic number.

It is an amenable number.

120521225 is a deficient number, since it is larger than the sum of its proper divisors (42511495).

120521225 is a wasteful number, since it uses less digits than its factorization.

120521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438280 (or 438275 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120521225 is about 10978.2159297401. The cubic root of 120521225 is about 493.9555230491.

Adding to 120521225 its reverse (522125021), we get a palindrome (642646246).

The spelling of 120521225 in words is "one hundred twenty million, five hundred twenty-one thousand, two hundred twenty-five".