120221320 has 32 divisors (see below), whose sum is σ = 272574720. Its totient is φ = 47719360.

The previous prime is 120221293. The next prime is 120221323. The reversal of 120221320 is 23122021.

It is a self number, because there is not a number n which added to its sum of digits gives 120221320.

It is not an unprimeable number, because it can be changed into a prime (120221323) 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 7 ways as a sum of consecutive naturals, for example, 6232 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (8517960).

Almost surely, 2^120221320 is an apocalyptic number.

120221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221320 is an abundant number, since it is smaller than the sum of its proper divisors (152353400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120221320 is a wasteful number, since it uses less digits than its factorization.

120221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23085 (or 23081 counting only the distinct ones).

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

The square root of 120221320 is about 10964.5483263106. The cubic root of 120221320 is about 493.5454631108.

Adding to 120221320 its reverse (23122021), we get a palindrome (143343341).

It can be divided in two parts, 1202 and 21320, that added together give a palindrome (22522).

The spelling of 120221320 in words is "one hundred twenty million, two hundred twenty-one thousand, three hundred twenty".