1331222113131 has 8 divisors (see below), whose sum is σ = 1774968321024. Its totient is φ = 887478657000.

The previous prime is 1331222113129. The next prime is 1331222113139. The reversal of 1331222113131 is 1313112221331.

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

It is not a de Polignac number, because 1331222113131 - 2¹ = 1331222113129 is a prime.

It is a super-2 number, since 2×1331222113131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331222113139) 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, 1118506 + ... + 1978256.

It is an arithmetic number, because the mean of its divisors is an integer number (221871040128).

Almost surely, 2^{1331222113131} is an apocalyptic number.

1331222113131 is a deficient number, since it is larger than the sum of its proper divisors (443746207893).

1331222113131 is an equidigital number, since it uses as much as digits as its factorization.

1331222113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375881.

The product of its digits is 648, while the sum is 24.

Adding to 1331222113131 its reverse (1313112221331), we get a palindrome (2644334334462).

The spelling of 1331222113131 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred thirty-one".