120123220 has 48 divisors (see below), whose sum is σ = 298247040. Its totient is φ = 39763584.

The previous prime is 120123217. The next prime is 120123247. The reversal of 120123220 is 22321021.

It is a self number, because there is not a number n which added to its sum of digits gives 120123220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10734 + ... + 18853.

It is an arithmetic number, because the mean of its divisors is an integer number (6213480).

Almost surely, 2^120123220 is an apocalyptic number.

120123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120123220 is an abundant number, since it is smaller than the sum of its proper divisors (178123820).

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

120123220 is a wasteful number, since it uses less digits than its factorization.

120123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29632 (or 29630 counting only the distinct ones).

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

The square root of 120123220 is about 10960.0739048603. The cubic root of 120123220 is about 493.4111830313.

Adding to 120123220 its reverse (22321021), we get a palindrome (142444241).

The spelling of 120123220 in words is "one hundred twenty million, one hundred twenty-three thousand, two hundred twenty".