130442234221 has 4 divisors (see below), whose sum is σ = 140476252252. Its totient is φ = 120408216192.

The previous prime is 130442234213. The next prime is 130442234239. The reversal of 130442234221 is 122432244031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66301100100 + 64141134121 = 257490^2 + 253261^2 .

It is a cyclic number.

It is not a de Polignac number, because 130442234221 - 2³ = 130442234213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130442234221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130442234821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5017008996 + ... + 5017009021.

It is an arithmetic number, because the mean of its divisors is an integer number (35119063063).

Almost surely, 2^130442234221 is an apocalyptic number.

It is an amenable number.

130442234221 is a deficient number, since it is larger than the sum of its proper divisors (10034018031).

130442234221 is a wasteful number, since it uses less digits than its factorization.

130442234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034018030.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 130442234221 its reverse (122432244031), we get a palindrome (252874478252).

The spelling of 130442234221 in words is "one hundred thirty billion, four hundred forty-two million, two hundred thirty-four thousand, two hundred twenty-one".