120321221 has 8 divisors (see below), whose sum is σ = 121445280. Its totient is φ = 119202192.

The previous prime is 120321191. The next prime is 120321239. The reversal of 120321221 is 122123021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120321221 - 2¹⁰ = 120320197 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 = 120321196 and 120321205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120323221) 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, 59810 + ... + 61788.

It is an arithmetic number, because the mean of its divisors is an integer number (15180660).

Almost surely, 2^120321221 is an apocalyptic number.

It is an amenable number.

120321221 is a deficient number, since it is larger than the sum of its proper divisors (1124059).

120321221 is a wasteful number, since it uses less digits than its factorization.

120321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 120321221 is about 10969.1030171113. The cubic root of 120321221 is about 493.6821333629.

Adding to 120321221 its reverse (122123021), we get a palindrome (242444242).

The spelling of 120321221 in words is "one hundred twenty million, three hundred twenty-one thousand, two hundred twenty-one".