822131131228 has 24 divisors (see below), whose sum is σ = 1579917273984. Its totient is φ = 371221158000.

The previous prime is 822131131223. The next prime is 822131131247.

822131131228 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 822131131193 and 822131131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822131131223) 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 7 ways as a sum of consecutive naturals, for example, 61863550 + ... + 61876837.

It is an arithmetic number, because the mean of its divisors is an integer number (65829886416).

Almost surely, 2^822131131228 is an apocalyptic number.

It is an amenable number.

822131131228 is a deficient number, since it is larger than the sum of its proper divisors (757786142756).

822131131228 is a wasteful number, since it uses less digits than its factorization.

822131131228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123740553 (or 123740551 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

It can be divided in two parts, 822131 and 131228, that added together give a palindrome (953359).

The spelling of 822131131228 in words is "eight hundred twenty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-eight".