120444221 has 16 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 112519680.

The previous prime is 120444209. The next prime is 120444227. The reversal of 120444221 is 122444021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120444221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120444193 and 120444202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120444227) 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 15 ways as a sum of consecutive naturals, for example, 131756 + ... + 132666.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2^120444221 is an apocalyptic number.

It is an amenable number.

120444221 is a deficient number, since it is larger than the sum of its proper divisors (8257219).

120444221 is an equidigital number, since it uses as much as digits as its factorization.

120444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120444221 is about 10974.7082421356. The cubic root of 120444221 is about 493.8503004909.

Adding to 120444221 its reverse (122444021), we get a palindrome (242888242).

The spelling of 120444221 in words is "one hundred twenty million, four hundred forty-four thousand, two hundred twenty-one".