130221242 has 8 divisors (see below), whose sum is σ = 198083232. Its totient is φ = 64193500.

The previous prime is 130221233. The next prime is 130221271. The reversal of 130221242 is 242122031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 130221242.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 458384 + ... + 458667.

It is an arithmetic number, because the mean of its divisors is an integer number (24760404).

Almost surely, 2^130221242 is an apocalyptic number.

130221242 is a deficient number, since it is larger than the sum of its proper divisors (67861990).

130221242 is an equidigital number, since it uses as much as digits as its factorization.

130221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917124.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130221242 is about 11411.4522301064. The cubic root of 130221242 is about 506.8669152095.

Adding to 130221242 its reverse (242122031), we get a palindrome (372343273).

The spelling of 130221242 in words is "one hundred thirty million, two hundred twenty-one thousand, two hundred forty-two".