130022161 has 2 divisors, whose sum is σ = 130022162. Its totient is φ = 130022160.

The previous prime is 130022141. The next prime is 130022183. The reversal of 130022161 is 161220031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111703761 + 18318400 = 10569^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 130022161 - 2⁹ = 130021649 is a prime.

It is a super-2 number, since 2×130022161² = 33811524702219842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130022141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65011080 + 65011081.

It is an arithmetic number, because the mean of its divisors is an integer number (65011081).

Almost surely, 2^130022161 is an apocalyptic number.

It is an amenable number.

130022161 is a deficient number, since it is larger than the sum of its proper divisors (1).

130022161 is an equidigital number, since it uses as much as digits as its factorization.

130022161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 130022161 is about 11402.7260337167. The cubic root of 130022161 is about 506.6084856919.

Adding to 130022161 its reverse (161220031), we get a palindrome (291242192).

The spelling of 130022161 in words is "one hundred thirty million, twenty-two thousand, one hundred sixty-one".