130221212 has 48 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 54999360.

The previous prime is 130221209. The next prime is 130221233. The reversal of 130221212 is 212122031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42839 + ... + 45777.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^130221212 is an apocalyptic number.

It is an amenable number.

130221212 is an abundant number, since it is smaller than the sum of its proper divisors (136495588).

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

130221212 is a wasteful number, since it uses less digits than its factorization.

130221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3024 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 130221212 is about 11411.4509156373. The cubic root of 130221212 is about 506.8668762860.

Adding to 130221212 its reverse (212122031), we get a palindrome (342343243).

The spelling of 130221212 in words is "one hundred thirty million, two hundred twenty-one thousand, two hundred twelve".