100130220 has 36 divisors (see below), whose sum is σ = 303728880. Its totient is φ = 26701344.

The previous prime is 100130213. The next prime is 100130249. The reversal of 100130220 is 22031001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277960 + ... + 278319.

Almost surely, 2^100130220 is an apocalyptic number.

100130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100130220 is an abundant number, since it is smaller than the sum of its proper divisors (203598660).

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

100130220 is a wasteful number, since it uses less digits than its factorization.

100130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556294 (or 556289 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100130220 is about 10006.5088817229. The cubic root of 100130220 is about 464.3602718698.

Adding to 100130220 its reverse (22031001), we get a palindrome (122161221).

The spelling of 100130220 in words is "one hundred million, one hundred thirty thousand, two hundred twenty".