120003221 has 16 divisors (see below), whose sum is σ = 144043200. Its totient is φ = 98765568.

The previous prime is 120003209. The next prime is 120003229. The reversal of 120003221 is 122300021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120003221 - 2⁶ = 120003157 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 (120003229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10091 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (9002700).

Almost surely, 2^120003221 is an apocalyptic number.

It is an amenable number.

120003221 is a deficient number, since it is larger than the sum of its proper divisors (24039979).

120003221 is a wasteful number, since it uses less digits than its factorization.

120003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28628.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120003221 is about 10954.5981669799. The cubic root of 120003221 is about 493.2468279761.

Adding to 120003221 its reverse (122300021), we get a palindrome (242303242).

The spelling of 120003221 in words is "one hundred twenty million, three thousand, two hundred twenty-one".