130112221 has 2 divisors, whose sum is σ = 130112222. Its totient is φ = 130112220.

The previous prime is 130112197. The next prime is 130112231. The reversal of 130112221 is 122211031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 46389721 = 9150^2 + 6811^2 .

It is a cyclic number.

It is not a de Polignac number, because 130112221 - 2¹¹ = 130110173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130112231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65056110 + 65056111.

It is an arithmetic number, because the mean of its divisors is an integer number (65056111).

Almost surely, 2^130112221 is an apocalyptic number.

It is an amenable number.

130112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130112221 is an equidigital number, since it uses as much as digits as its factorization.

130112221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 130112221 is about 11406.6744058029. The cubic root of 130112221 is about 506.7254263473.

Adding to 130112221 its reverse (122211031), we get a palindrome (252323252).

The spelling of 130112221 in words is "one hundred thirty million, one hundred twelve thousand, two hundred twenty-one".