120506221 has 8 divisors (see below), whose sum is σ = 131688000. Its totient is φ = 109362240.

The previous prime is 120506219. The next prime is 120506273. The reversal of 120506221 is 122605021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120506221 - 2¹ = 120506219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120506921) 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 7 ways as a sum of consecutive naturals, for example, 2556 + ... + 15733.

It is an arithmetic number, because the mean of its divisors is an integer number (16461000).

Almost surely, 2^120506221 is an apocalyptic number.

120506221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120506221 is a deficient number, since it is larger than the sum of its proper divisors (11181779).

120506221 is a wasteful number, since it uses less digits than its factorization.

120506221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18899.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 120506221 is about 10977.5325551783. The cubic root of 120506221 is about 493.9350242635.

The spelling of 120506221 in words is "one hundred twenty million, five hundred six thousand, two hundred twenty-one".