130221632 has 28 divisors (see below), whose sum is σ = 273611340. Its totient is φ = 61280256.

The previous prime is 130221613. The next prime is 130221659. The reversal of 130221632 is 236122031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46022656 + 84198976 = 6784^2 + 9176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58757 + ... + 60932.

Almost surely, 2^130221632 is an apocalyptic number.

It is an amenable number.

130221632 is an abundant number, since it is smaller than the sum of its proper divisors (143389708).

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

130221632 is a wasteful number, since it uses less digits than its factorization.

130221632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119718 (or 119708 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 130221632 is about 11411.4693181904. The cubic root of 130221632 is about 506.8674212148.

Adding to 130221632 its reverse (236122031), we get a palindrome (366343663).

The spelling of 130221632 in words is "one hundred thirty million, two hundred twenty-one thousand, six hundred thirty-two".