220020000 has 240 divisors, whose sum is σ = 763630560. Its totient is φ = 55296000.

The previous prime is 220019993. The next prime is 220020011. The reversal of 220020000 is 20022.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1139904 + ... + 1140096.

It is an arithmetic number, because the mean of its divisors is an integer number (3181794).

Almost surely, 2^220020000 is an apocalyptic number.

220020000 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 220020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381815280).

220020000 is an abundant number, since it is smaller than the sum of its proper divisors (543610560).

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

220020000 is a wasteful number, since it uses less digits than its factorization.

220020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

The square root of 220020000 is about 14833.0711587318. The cubic root of 220020000 is about 603.6993664913.

Adding to 220020000 its reverse (20022), we get a palindrome (220040022).

The spelling of 220020000 in words is "two hundred twenty million, twenty thousand".