120303220 has 24 divisors (see below), whose sum is σ = 267498504. Its totient is φ = 45290496.

The previous prime is 120303217. The next prime is 120303229. The reversal of 120303220 is 22303021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31114084 + 89189136 = 5578^2 + 9444^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120303220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120303229) 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, 176577 + ... + 177256.

It is an arithmetic number, because the mean of its divisors is an integer number (11145771).

Almost surely, 2^120303220 is an apocalyptic number.

120303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120303220 is an abundant number, since it is smaller than the sum of its proper divisors (147195284).

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

120303220 is a wasteful number, since it uses less digits than its factorization.

120303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353859 (or 353857 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 120303220 is about 10968.2824544228. The cubic root of 120303220 is about 493.6575125597.

Adding to 120303220 its reverse (22303021), we get a palindrome (142606241).

The spelling of 120303220 in words is "one hundred twenty million, three hundred three thousand, two hundred twenty".