130205122 has 4 divisors (see below), whose sum is σ = 195307686. Its totient is φ = 65102560.

The previous prime is 130205111. The next prime is 130205123. The reversal of 130205122 is 221502031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221502031 = 2239 ⋅98929.

It can be written as a sum of positive squares in only one way, i.e., 129754881 + 450241 = 11391^2 + 671^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130205096 and 130205105.

It is not an unprimeable number, because it can be changed into a prime (130205123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32551279 + ... + 32551282.

Almost surely, 2^130205122 is an apocalyptic number.

130205122 is a deficient number, since it is larger than the sum of its proper divisors (65102564).

130205122 is an equidigital number, since it uses as much as digits as its factorization.

130205122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65102563.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130205122 is about 11410.7459002468. The cubic root of 130205122 is about 506.8459994416.

Adding to 130205122 its reverse (221502031), we get a palindrome (351707153).

The spelling of 130205122 in words is "one hundred thirty million, two hundred five thousand, one hundred twenty-two".