220100200100 has 72 divisors (see below), whose sum is σ = 521110875936. Its totient is φ = 80025120000.

The previous prime is 220100200079. The next prime is 220100200163. The reversal of 220100200100 is 1002001022.

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, 15404960 + ... + 15419240.

Almost surely, 2^220100200100 is an apocalyptic number.

220100200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220100200100 is an abundant number, since it is smaller than the sum of its proper divisors (301010675836).

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

220100200100 is a wasteful number, since it uses less digits than its factorization.

220100200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28317 (or 28310 counting only the distinct ones).

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

Adding to 220100200100 its reverse (1002001022), we get a palindrome (221102201122).

It can be divided in two parts, 2 and 20100200100, that added together give a palindrome (20100200102).

The spelling of 220100200100 in words is "two hundred twenty billion, one hundred million, two hundred thousand, one hundred".