120021065 has 8 divisors (see below), whose sum is σ = 144221568. Its totient is φ = 95886000.

The previous prime is 120021049. The next prime is 120021067. The reversal of 120021065 is 560120021.

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

It is not a de Polignac number, because 120021065 - 2⁴ = 120021049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12227 + ... + 19736.

It is an arithmetic number, because the mean of its divisors is an integer number (18027696).

Almost surely, 2^120021065 is an apocalyptic number.

It is an amenable number.

120021065 is a deficient number, since it is larger than the sum of its proper divisors (24200503).

120021065 is an equidigital number, since it uses as much as digits as its factorization.

120021065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32719.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 120021065 is about 10955.4125892182. The cubic root of 120021065 is about 493.2712747093.

Adding to 120021065 its reverse (560120021), we get a palindrome (680141086).

The spelling of 120021065 in words is "one hundred twenty million, twenty-one thousand, sixty-five".