130221220131 has 32 divisors (see below), whose sum is σ = 193435200000. Its totient is φ = 86582702304.

The previous prime is 130221220093. The next prime is 130221220177. The reversal of 130221220131 is 131022122031.

130221220131 is a `hidden beast` number, since 1 + 302 + 212 + 20 + 131 = 666.

It is not a de Polignac number, because 130221220131 - 2⁶ = 130221220067 is a prime.

It is a super-2 number, since 2×130221220131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130221220231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32643085 + ... + 32647073.

It is an arithmetic number, because the mean of its divisors is an integer number (6044850000).

Almost surely, 2^130221220131 is an apocalyptic number.

130221220131 is a deficient number, since it is larger than the sum of its proper divisors (63213979869).

130221220131 is a wasteful number, since it uses less digits than its factorization.

130221220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920 (or 6914 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 130221220131 its reverse (131022122031), we get a palindrome (261243342162).

The spelling of 130221220131 in words is "one hundred thirty billion, two hundred twenty-one million, two hundred twenty thousand, one hundred thirty-one".