130212228 has 24 divisors (see below), whose sum is σ = 311240160. Its totient is φ = 42345280.

The previous prime is 130212179. The next prime is 130212239. The reversal of 130212228 is 822212031.

It is a happy number.

It is a super-3 number, since 3×130212228³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131838 + ... + 132821.

It is an arithmetic number, because the mean of its divisors is an integer number (12968340).

Almost surely, 2^130212228 is an apocalyptic number.

It is an amenable number.

130212228 is an abundant number, since it is smaller than the sum of its proper divisors (181027932).

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

130212228 is a wasteful number, since it uses less digits than its factorization.

130212228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264707 (or 264705 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 130212228 is about 11411.0572691578. The cubic root of 130212228 is about 506.8552197193.

Adding to 130212228 its reverse (822212031), we get a palindrome (952424259).

It can be divided in two parts, 1302 and 12228, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 130212228 in words is "one hundred thirty million, two hundred twelve thousand, two hundred twenty-eight".