220000120 has 16 divisors (see below), whose sum is σ = 495000360. Its totient is φ = 88000032.

The previous prime is 220000073. The next prime is 220000141. The reversal of 220000120 is 21000022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2749962 + ... + 2750041.

Almost surely, 2^220000120 is an apocalyptic number.

220000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000120 is an abundant number, since it is smaller than the sum of its proper divisors (275000240).

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

220000120 is a wasteful number, since it uses less digits than its factorization.

220000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500014 (or 5500010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220000120 is about 14832.4010193899. The cubic root of 220000120 is about 603.6811834399.

Adding to 220000120 its reverse (21000022), we get a palindrome (241000142).

The spelling of 220000120 in words is "two hundred twenty million, one hundred twenty", and thus it is an aban number.