120664221 has 8 divisors (see below), whose sum is σ = 162389664. Its totient is φ = 79690800.

The previous prime is 120664207. The next prime is 120664241. The reversal of 120664221 is 122466021.

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

It is not a de Polignac number, because 120664221 - 2¹⁸ = 120402077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120664191 and 120664200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120664241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187630 + ... + 188271.

It is an arithmetic number, because the mean of its divisors is an integer number (20298708).

Almost surely, 2^120664221 is an apocalyptic number.

It is an amenable number.

120664221 is a deficient number, since it is larger than the sum of its proper divisors (41725443).

120664221 is a wasteful number, since it uses less digits than its factorization.

120664221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376011.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 120664221 is about 10984.7267148528. The cubic root of 120664221 is about 494.1508019228.

The spelling of 120664221 in words is "one hundred twenty million, six hundred sixty-four thousand, two hundred twenty-one".