120120220 has 24 divisors (see below), whose sum is σ = 275185008. Its totient is φ = 43680000.

The previous prime is 120120193. The next prime is 120120227. The reversal of 120120220 is 22021021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 120120197 and 120120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120227) 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, 272781 + ... + 273220.

It is an arithmetic number, because the mean of its divisors is an integer number (11466042).

Almost surely, 2^120120220 is an apocalyptic number.

120120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120220 is an abundant number, since it is smaller than the sum of its proper divisors (155064788).

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

120120220 is a wasteful number, since it uses less digits than its factorization.

120120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546021 (or 546019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 120120220 is about 10959.9370436148. The cubic root of 120120220 is about 493.4070754550.

Adding to 120120220 its reverse (22021021), we get a palindrome (142141241).

The spelling of 120120220 in words is "one hundred twenty million, one hundred twenty thousand, two hundred twenty".