120415221225 has 72 divisors (see below), whose sum is σ = 239760265472. Its totient is φ = 57368995200.

The previous prime is 120415221221. The next prime is 120415221233. The reversal of 120415221225 is 522122514021.

120415221225 is a `hidden beast` number, since 1 + 2 + 0 + 415 + 2 + 21 + 225 = 666.

It is not a de Polignac number, because 120415221225 - 2² = 120415221221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120415221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 573319 + ... + 754668.

Almost surely, 2^120415221225 is an apocalyptic number.

120415221225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120415221225 is a deficient number, since it is larger than the sum of its proper divisors (119345044247).

120415221225 is a wasteful number, since it uses less digits than its factorization.

120415221225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328047 (or 1328039 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 120415221225 its reverse (522122514021), we get a palindrome (642537735246).

The spelling of 120415221225 in words is "one hundred twenty billion, four hundred fifteen million, two hundred twenty-one thousand, two hundred twenty-five".