8221310751131 has 4 divisors (see below), whose sum is σ = 8654011317000. Its totient is φ = 7788610185264.

The previous prime is 8221310751109. The next prime is 8221310751253. The reversal of 8221310751131 is 1311570131228.

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

It is a de Polignac number, because none of the positive numbers 2^k-8221310751131 is a prime.

It is a super-2 number, since 2×8221310751131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8221310751091 and 8221310751100.

It is not an unprimeable number, because it can be changed into a prime (8221310751631) 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, 216350282906 + ... + 216350282943.

It is an arithmetic number, because the mean of its divisors is an integer number (2163502829250).

Almost surely, 2^{8221310751131} is an apocalyptic number.

8221310751131 is a deficient number, since it is larger than the sum of its proper divisors (432700565869).

8221310751131 is a wasteful number, since it uses less digits than its factorization.

8221310751131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432700565868.

The product of its (nonzero) digits is 10080, while the sum is 35.

Adding to 8221310751131 its reverse (1311570131228), we get a palindrome (9532880882359).

The spelling of 8221310751131 in words is "eight trillion, two hundred twenty-one billion, three hundred ten million, seven hundred fifty-one thousand, one hundred thirty-one".