130221911 has 2 divisors, whose sum is σ = 130221912. Its totient is φ = 130221910.

The previous prime is 130221869. The next prime is 130221961. The reversal of 130221911 is 119122031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130221911 - 2²⁶ = 63113047 is a prime.

It is a super-2 number, since 2×130221911² = 33915492208983842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130221961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65110955 + 65110956.

It is an arithmetic number, because the mean of its divisors is an integer number (65110956).

Almost surely, 2^130221911 is an apocalyptic number.

130221911 is a deficient number, since it is larger than the sum of its proper divisors (1).

130221911 is an equidigital number, since it uses as much as digits as its factorization.

130221911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 130221911 is about 11411.4815427270. The cubic root of 130221911 is about 506.8677832025.

Adding to 130221911 its reverse (119122031), we get a palindrome (249343942).

The spelling of 130221911 in words is "one hundred thirty million, two hundred twenty-one thousand, nine hundred eleven".