220200100100 has 72 divisors (see below), whose sum is σ = 495806808000. Its totient is φ = 84785500800.

The previous prime is 220200100067. The next prime is 220200100117. The reversal of 220200100100 is 1001002022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845201 + ... + 1074599.

Almost surely, 2^220200100100 is an apocalyptic number.

220200100100 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 220200100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247903404000).

220200100100 is an abundant number, since it is smaller than the sum of its proper divisors (275606707900).

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

220200100100 is a wasteful number, since it uses less digits than its factorization.

220200100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229773 (or 229766 counting only the distinct ones).

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

Adding to 220200100100 its reverse (1001002022), we get a palindrome (221201102122).

The spelling of 220200100100 in words is "two hundred twenty billion, two hundred million, one hundred thousand, one hundred".