1331242224405 has 16 divisors (see below), whose sum is σ = 2140082291904. Its totient is φ = 706630942080.

The previous prime is 1331242224401. The next prime is 1331242224413. The reversal of 1331242224405 is 5044222421331.

It is a happy number.

It is not a de Polignac number, because 1331242224405 - 2² = 1331242224401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331242224401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210303664 + ... + 210309993.

It is an arithmetic number, because the mean of its divisors is an integer number (133755143244).

Almost surely, 2^{1331242224405} is an apocalyptic number.

1331242224405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1331242224405 is a deficient number, since it is larger than the sum of its proper divisors (808840067499).

1331242224405 is a wasteful number, since it uses less digits than its factorization.

1331242224405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420613876.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1331242224405 its reverse (5044222421331), we get a palindrome (6375464645736).

The spelling of 1331242224405 in words is "one trillion, three hundred thirty-one billion, two hundred forty-two million, two hundred twenty-four thousand, four hundred five".