130322221 has 4 divisors (see below), whose sum is σ = 137988252. Its totient is φ = 122656192.

The previous prime is 130322191. The next prime is 130322237. The reversal of 130322221 is 122223031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81252196 + 49070025 = 9014^2 + 7005^2 .

It is a cyclic number.

It is not a de Polignac number, because 130322221 - 2⁵ = 130322189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130322195 and 130322204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130322021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3832990 + ... + 3833023.

It is an arithmetic number, because the mean of its divisors is an integer number (34497063).

Almost surely, 2^130322221 is an apocalyptic number.

It is an amenable number.

130322221 is a deficient number, since it is larger than the sum of its proper divisors (7666031).

130322221 is an equidigital number, since it uses as much as digits as its factorization.

130322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666030.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130322221 is about 11415.8758314901. The cubic root of 130322221 is about 506.9978966310.

Adding to 130322221 its reverse (122223031), we get a palindrome (252545252).

The spelling of 130322221 in words is "one hundred thirty million, three hundred twenty-two thousand, two hundred twenty-one".