120320201221 has 16 divisors (see below), whose sum is σ = 133447824000. Its totient is φ = 107572024000.

The previous prime is 120320201219. The next prime is 120320201279. The reversal of 120320201221 is 122102023021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120320201221 - 2¹ = 120320201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120320201195 and 120320201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120320201201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197881 + ... + 528958.

It is an arithmetic number, because the mean of its divisors is an integer number (8340489000).

Almost surely, 2^120320201221 is an apocalyptic number.

120320201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120320201221 is a deficient number, since it is larger than the sum of its proper divisors (13127622779).

120320201221 is a wasteful number, since it uses less digits than its factorization.

120320201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727100.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 120320201221 its reverse (122102023021), we get a palindrome (242422224242).

The spelling of 120320201221 in words is "one hundred twenty billion, three hundred twenty million, two hundred one thousand, two hundred twenty-one".