120203221 has 4 divisors (see below), whose sum is σ = 125429472. Its totient is φ = 114976972.

The previous prime is 120203203. The next prime is 120203233. The reversal of 120203221 is 122302021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120203221 - 2¹¹ = 120201173 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 (120203201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2613091 + ... + 2613136.

It is an arithmetic number, because the mean of its divisors is an integer number (31357368).

Almost surely, 2^120203221 is an apocalyptic number.

It is an amenable number.

120203221 is a deficient number, since it is larger than the sum of its proper divisors (5226251).

120203221 is an equidigital number, since it uses as much as digits as its factorization.

120203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226250.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120203221 is about 10963.7229534497. The cubic root of 120203221 is about 493.5206945488.

Adding to 120203221 its reverse (122302021), we get a palindrome (242505242).

The spelling of 120203221 in words is "one hundred twenty million, two hundred three thousand, two hundred twenty-one".