1331222140441 has 2 divisors, whose sum is σ = 1331222140442. Its totient is φ = 1331222140440.

The previous prime is 1331222140433. The next prime is 1331222140499. The reversal of 1331222140441 is 1440412221331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203365120400 + 127857020041 = 1096980^2 + 357571^2 .

It is an emirp because it is prime and its reverse (1440412221331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331222140441 - 2³ = 1331222140433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331222140411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665611070220 + 665611070221.

It is an arithmetic number, because the mean of its divisors is an integer number (665611070221).

Almost surely, 2^{1331222140441} is an apocalyptic number.

It is an amenable number.

1331222140441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331222140441 is an equidigital number, since it uses as much as digits as its factorization.

1331222140441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1331222140441 its reverse (1440412221331), we get a palindrome (2771634361772).

The spelling of 1331222140441 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-two million, one hundred forty thousand, four hundred forty-one".