220120500 has 96 divisors (see below), whose sum is σ = 644611968. Its totient is φ = 58368000.

The previous prime is 220120499. The next prime is 220120517. The reversal of 220120500 is 5021022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385215 + ... + 385785.

It is an arithmetic number, because the mean of its divisors is an integer number (6714708).

Almost surely, 2^220120500 is an apocalyptic number.

220120500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220120500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322305984).

220120500 is an abundant number, since it is smaller than the sum of its proper divisors (424491468).

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

220120500 is a wasteful number, since it uses less digits than its factorization.

220120500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 220120500 is about 14836.4584722905. The cubic root of 220120500 is about 603.7912710922.

Adding to 220120500 its reverse (5021022), we get a palindrome (225141522).

The spelling of 220120500 in words is "two hundred twenty million, one hundred twenty thousand, five hundred".