200100002220 has 144 divisors (see below), whose sum is σ = 618692491872. Its totient is φ = 52330337280.

The previous prime is 200100002209. The next prime is 200100002287. The reversal of 200100002220 is 22200001002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42364779 + ... + 42369501.

It is an arithmetic number, because the mean of its divisors is an integer number (4296475638).

Almost surely, 2^200100002220 is an apocalyptic number.

200100002220 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 200100002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309346245936).

200100002220 is an abundant number, since it is smaller than the sum of its proper divisors (418592489652).

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

200100002220 is a wasteful number, since it uses less digits than its factorization.

200100002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232 (or 9227 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200100002220 its reverse (22200001002), we get a palindrome (222300003222).

The spelling of 200100002220 in words is "two hundred billion, one hundred million, two thousand, two hundred twenty".