100200220 has 24 divisors (see below), whose sum is σ = 217677600. Its totient is φ = 38697792.

The previous prime is 100200209. The next prime is 100200223. The reversal of 100200220 is 22002001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85800 + ... + 86959.

It is an arithmetic number, because the mean of its divisors is an integer number (9069900).

Almost surely, 2^100200220 is an apocalyptic number.

100200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100200220 is an abundant number, since it is smaller than the sum of its proper divisors (117477380).

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

100200220 is a wasteful number, since it uses less digits than its factorization.

100200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172797 (or 172795 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 100200220 is about 10010.0059940042. The cubic root of 100200220 is about 464.4684564828.

Adding to 100200220 its reverse (22002001), we get a palindrome (122202221).

The spelling of 100200220 in words is "one hundred million, two hundred thousand, two hundred twenty".