100550000220 has 48 divisors (see below), whose sum is σ = 293780874240. Its totient is φ = 25647535936.

The previous prime is 100550000219. The next prime is 100550000269. The reversal of 100550000220 is 22000055001.

It is a super-2 number, since 2×100550000220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100550000220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36429780 + ... + 36432539.

It is an arithmetic number, because the mean of its divisors is an integer number (6120434880).

Almost surely, 2^100550000220 is an apocalyptic number.

100550000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100550000220 is an abundant number, since it is smaller than the sum of its proper divisors (193230874020).

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

100550000220 is a wasteful number, since it uses less digits than its factorization.

100550000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72862354 (or 72862352 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

Adding to 100550000220 its reverse (22000055001), we get a palindrome (122550055221).

The spelling of 100550000220 in words is "one hundred billion, five hundred fifty million, two hundred twenty", and thus it is an aban number.