120547221 has 32 divisors (see below), whose sum is σ = 176220288. Its totient is φ = 72990720.

The previous prime is 120547201. The next prime is 120547223. The reversal of 120547221 is 122745021.

It is a de Polignac number, because none of the positive numbers 2^k-120547221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120547191 and 120547200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120547223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364026 + ... + 364356.

It is an arithmetic number, because the mean of its divisors is an integer number (5506884).

Almost surely, 2^120547221 is an apocalyptic number.

It is an amenable number.

120547221 is a deficient number, since it is larger than the sum of its proper divisors (55673067).

120547221 is a wasteful number, since it uses less digits than its factorization.

120547221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 120547221 is about 10979.3998469862. The cubic root of 120547221 is about 493.9910353130.

The spelling of 120547221 in words is "one hundred twenty million, five hundred forty-seven thousand, two hundred twenty-one".