220120 has 16 divisors (see below), whose sum is σ = 495360.
Its totient is φ = 88032.
The previous prime is 220063. The next prime is 220123. The reversal of 220120 is 21022.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (220123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712 + ... + 2791.
It is an arithmetic number, because the mean of its divisors is an integer number (30960).
2220120 is an apocalyptic number.
220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
220120 is an abundant number, since it is smaller than the sum of its proper divisors (275240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220120 is a wasteful number, since it uses less digits than its factorization.
220120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5514 (or 5510 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 220120 is about 469.1694789732.
The cubic root of 220120 is about 60.3790813925.
Adding to 220120 its reverse (21022), we get a palindrome (241142).
The spelling of 220120 in words is "two hundred twenty thousand, one hundred twenty", and thus it is an iban number.