130140221 has 2 divisors, whose sum is σ = 130140222. Its totient is φ = 130140220.

The previous prime is 130140209. The next prime is 130140251. The reversal of 130140221 is 122041031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99780121 + 30360100 = 9989^2 + 5510^2 .

It is a cyclic number.

It is not a de Polignac number, because 130140221 - 2¹⁰ = 130139197 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 130140196 and 130140205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65070110 + 65070111.

It is an arithmetic number, because the mean of its divisors is an integer number (65070111).

Almost surely, 2^130140221 is an apocalyptic number.

It is an amenable number.

130140221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130140221 is an equidigital number, since it uses as much as digits as its factorization.

130140221 is an evil number, because the sum of its binary digits is even.

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

The square root of 130140221 is about 11407.9016913716. The cubic root of 130140221 is about 506.7617726495.

Adding to 130140221 its reverse (122041031), we get a palindrome (252181252).

The spelling of 130140221 in words is "one hundred thirty million, one hundred forty thousand, two hundred twenty-one".