100000222200 has 72 divisors (see below), whose sum is σ = 335834085600. Its totient is φ = 26666725440.

The previous prime is 100000222193. The next prime is 100000222213. The reversal of 100000222200 is 2222000001.

It is a tau number, because it is divible by the number of its divisors (72).

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

100000222200 is a modest number, since divided by 222200 gives 1000 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27776040 + ... + 27779639.

It is an arithmetic number, because the mean of its divisors is an integer number (4664362300).

Almost surely, 2^100000222200 is an apocalyptic number.

100000222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000222200 is an abundant number, since it is smaller than the sum of its proper divisors (235833863400).

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

100000222200 is a wasteful number, since it uses less digits than its factorization.

100000222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555701 (or 55555689 counting only the distinct ones).

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

Adding to 100000222200 its reverse (2222000001), we get a palindrome (102222222201).

The spelling of 100000222200 in words is "one hundred billion, two hundred twenty-two thousand, two hundred".