1322231212331 has 2 divisors, whose sum is σ = 1322231212332. Its totient is φ = 1322231212330.

The previous prime is 1322231212327. The next prime is 1322231212339. The reversal of 1322231212331 is 1332121322231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1322231212331 - 2² = 1322231212327 is a prime.

It is a super-2 number, since 2×1322231212331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322231212331.

It is not a weakly prime, because it can be changed into another prime (1322231212339) 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 as a sum of consecutive naturals, namely, 661115606165 + 661115606166.

It is an arithmetic number, because the mean of its divisors is an integer number (661115606166).

Almost surely, 2^{1322231212331} is an apocalyptic number.

1322231212331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322231212331 is an equidigital number, since it uses as much as digits as its factorization.

1322231212331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

Adding to 1322231212331 its reverse (1332121322231), we get a palindrome (2654352534562).

The spelling of 1322231212331 in words is "one trillion, three hundred twenty-two billion, two hundred thirty-one million, two hundred twelve thousand, three hundred thirty-one".