12440122333231 has 2 divisors, whose sum is σ = 12440122333232. Its totient is φ = 12440122333230.

The previous prime is 12440122333229. The next prime is 12440122333267. The reversal of 12440122333231 is 13233322104421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12440122333231 - 2¹ = 12440122333229 is a prime.

It is a super-2 number, since 2×12440122333231² (a number of 27 digits) contains 22 as substring.

Together with 12440122333229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12440122333193 and 12440122333202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440122333211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220061166615 + 6220061166616.

It is an arithmetic number, because the mean of its divisors is an integer number (6220061166616).

Almost surely, 2^{12440122333231} is an apocalyptic number.

12440122333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440122333231 is an equidigital number, since it uses as much as digits as its factorization.

12440122333231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 12440122333231 its reverse (13233322104421), we get a palindrome (25673444437652).

The spelling of 12440122333231 in words is "twelve trillion, four hundred forty billion, one hundred twenty-two million, three hundred thirty-three thousand, two hundred thirty-one".