200020220500 has 24 divisors (see below), whose sum is σ = 436844162664. Its totient is φ = 80008088000.

The previous prime is 200020220497. The next prime is 200020220501. The reversal of 200020220500 is 5022020002.

It can be written as a sum of positive squares in 4 ways, for example, as 14019507216 + 186000713284 = 118404^2 + 431278^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020220501) 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, 200019721 + ... + 200020720.

It is an arithmetic number, because the mean of its divisors is an integer number (18201840111).

Almost surely, 2^200020220500 is an apocalyptic number.

200020220500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020220500 is an abundant number, since it is smaller than the sum of its proper divisors (236823942164).

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

200020220500 is a wasteful number, since it uses less digits than its factorization.

200020220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400040460 (or 400040448 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

Adding to 200020220500 its reverse (5022020002), we get a palindrome (205042240502).

The spelling of 200020220500 in words is "two hundred billion, twenty million, two hundred twenty thousand, five hundred".