120122220 has 48 divisors (see below), whose sum is σ = 344171520. Its totient is φ = 31286976.

The previous prime is 120122209. The next prime is 120122227. The reversal of 120122220 is 22221021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120122196 and 120122205.

It is not an unprimeable number, because it can be changed into a prime (120122227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20700 + ... + 25859.

It is an arithmetic number, because the mean of its divisors is an integer number (7170240).

Almost surely, 2^120122220 is an apocalyptic number.

120122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120122220 is an abundant number, since it is smaller than the sum of its proper divisors (224049300).

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

120122220 is a wasteful number, since it uses less digits than its factorization.

120122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46614 (or 46612 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120122220 is about 10960.0282846350. The cubic root of 120122220 is about 493.4098138468.

Adding to 120122220 its reverse (22221021), we get a palindrome (142343241).

The spelling of 120122220 in words is "one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".