100220130 has 24 divisors (see below), whose sum is σ = 260572572. Its totient is φ = 26725344.

The previous prime is 100220129. The next prime is 100220189. The reversal of 100220130 is 31022001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100220121 + 9 = 10011^2 + 3^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556689 + ... + 556868.

Almost surely, 2^100220130 is an apocalyptic number.

100220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100220130 is an abundant number, since it is smaller than the sum of its proper divisors (160352442).

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

100220130 is a wasteful number, since it uses less digits than its factorization.

100220130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113570 (or 1113567 counting only the distinct ones).

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

The square root of 100220130 is about 10011.0004495055. Note that the first 3 decimals coincide. The cubic root of 100220130 is about 464.4992180737.

Adding to 100220130 its reverse (31022001), we get a palindrome (131242131).

The spelling of 100220130 in words is "one hundred million, two hundred twenty thousand, one hundred thirty".