1331440212044 has 6 divisors (see below), whose sum is σ = 2330020371084. Its totient is φ = 665720106020.

The previous prime is 1331440211953. The next prime is 1331440212049. The reversal of 1331440212044 is 4402120441331.

It is a junction number, because it is equal to n+sod(n) for n = 1331440211998 and 1331440212016.

It is not an unprimeable number, because it can be changed into a prime (1331440212049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166430026502 + ... + 166430026509.

It is an arithmetic number, because the mean of its divisors is an integer number (388336728514).

Almost surely, 2^{1331440212044} is an apocalyptic number.

It is an amenable number.

1331440212044 is a deficient number, since it is larger than the sum of its proper divisors (998580159040).

1331440212044 is a wasteful number, since it uses less digits than its factorization.

1331440212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332860053015 (or 332860053013 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1331440212044 its reverse (4402120441331), we get a palindrome (5733560653375).

The spelling of 1331440212044 in words is "one trillion, three hundred thirty-one billion, four hundred forty million, two hundred twelve thousand, forty-four".