8312222222138 has 8 divisors (see below), whose sum is σ = 12468348749460. Its totient is φ = 4156105972320.

The previous prime is 8312222222113. The next prime is 8312222222149.

It is a happy number.

8312222222138 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 8157838453249 + 154383768889 = 2856193^2 + 392917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55523 + ... + 4077686.

Almost surely, 2^{8312222222138} is an apocalyptic number.

8312222222138 is a deficient number, since it is larger than the sum of its proper divisors (4156126527322).

8312222222138 is a wasteful number, since it uses less digits than its factorization.

8312222222138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138752.

The product of its digits is 73728, while the sum is 38.

It can be divided in two parts, 83 and 12222222138, that added together give a palindrome (12222222221).

The spelling of 8312222222138 in words is "eight trillion, three hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred thirty-eight".