130221001231 has 4 divisors (see below), whose sum is σ = 130402116000. Its totient is φ = 130039886464.

The previous prime is 130221001193. The next prime is 130221001243. The reversal of 130221001231 is 132100122031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132100122031 = 61 ⋅2165575771.

It is a cyclic number.

It is not a de Polignac number, because 130221001231 - 2²³ = 130212612623 is a prime.

It is a super-2 number, since 2×130221001231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221001531) 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 in 3 ways as a sum of consecutive naturals, for example, 90556306 + ... + 90557743.

It is an arithmetic number, because the mean of its divisors is an integer number (32600529000).

Almost surely, 2^130221001231 is an apocalyptic number.

130221001231 is a deficient number, since it is larger than the sum of its proper divisors (181114769).

130221001231 is an equidigital number, since it uses as much as digits as its factorization.

130221001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181114768.

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

Adding to 130221001231 its reverse (132100122031), we get a palindrome (262321123262).

The spelling of 130221001231 in words is "one hundred thirty billion, two hundred twenty-one million, one thousand, two hundred thirty-one".