130221912 has 32 divisors (see below), whose sum is σ = 325868400. Its totient is φ = 43365504.

The previous prime is 130221911. The next prime is 130221961. The reversal of 130221912 is 219122031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221911) 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 7 ways as a sum of consecutive naturals, for example, 32398 + ... + 36194.

Almost surely, 2^130221912 is an apocalyptic number.

130221912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130221912 is an abundant number, since it is smaller than the sum of its proper divisors (195646488).

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

130221912 is a wasteful number, since it uses less digits than its factorization.

130221912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235 (or 5231 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 130221912 is about 11411.4815865426. The cubic root of 130221912 is about 506.8677845000.

Adding to 130221912 its reverse (219122031), we get a palindrome (349343943).

The spelling of 130221912 in words is "one hundred thirty million, two hundred twenty-one thousand, nine hundred twelve".