130305222 has 24 divisors (see below), whose sum is σ = 288895464. Its totient is φ = 42424704.

The previous prime is 130305199. The next prime is 130305223. The reversal of 130305222 is 222503031.

It is a super-3 number, since 3×130305222³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130305195 and 130305204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130305223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83403 + ... + 84950.

It is an arithmetic number, because the mean of its divisors is an integer number (12037311).

Almost surely, 2^130305222 is an apocalyptic number.

130305222 is an abundant number, since it is smaller than the sum of its proper divisors (158590242).

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

130305222 is a wasteful number, since it uses less digits than its factorization.

130305222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168404 (or 168401 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130305222 is about 11415.1312738838. The cubic root of 130305222 is about 506.9758517028.

Adding to 130305222 its reverse (222503031), we get a palindrome (352808253).

The spelling of 130305222 in words is "one hundred thirty million, three hundred five thousand, two hundred twenty-two".