130131221 has 8 divisors (see below), whose sum is σ = 142084800. Its totient is φ = 118198240.

The previous prime is 130131191. The next prime is 130131229. The reversal of 130131221 is 122131031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130131221 - 2¹⁴ = 130114837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130131196 and 130131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131229) 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 in 7 ways as a sum of consecutive naturals, for example, 10025 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (17760600).

Almost surely, 2^130131221 is an apocalyptic number.

130131221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130131221 is a deficient number, since it is larger than the sum of its proper divisors (11953579).

130131221 is a wasteful number, since it uses less digits than its factorization.

130131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10299.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 130131221 is about 11407.5072211242. The cubic root of 130131221 is about 506.7500904781.

Adding to 130131221 its reverse (122131031), we get a palindrome (252262252).

The spelling of 130131221 in words is "one hundred thirty million, one hundred thirty-one thousand, two hundred twenty-one".