130512220 has 12 divisors (see below), whose sum is σ = 274075704. Its totient is φ = 52204880.

The previous prime is 130512203. The next prime is 130512233. The reversal of 130512220 is 22215031.

It is a junction number, because it is equal to n+sod(n) for n = 130512194 and 130512203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3262786 + ... + 3262825.

It is an arithmetic number, because the mean of its divisors is an integer number (22839642).

Almost surely, 2^130512220 is an apocalyptic number.

130512220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130512220 is an abundant number, since it is smaller than the sum of its proper divisors (143563484).

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

130512220 is a wasteful number, since it uses less digits than its factorization.

130512220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525620 (or 6525618 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130512220 is about 11424.1945011454. The cubic root of 130512220 is about 507.2441639654.

Adding to 130512220 its reverse (22215031), we get a palindrome (152727251).

The spelling of 130512220 in words is "one hundred thirty million, five hundred twelve thousand, two hundred twenty".