1311222111124 has 48 divisors (see below), whose sum is σ = 2431810180800. Its totient is φ = 617559296256.

The previous prime is 1311222111119. The next prime is 1311222111151. The reversal of 1311222111124 is 4211112221131.

It is a junction number, because it is equal to n+sod(n) for n = 1311222111095 and 1311222111104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4121347 + ... + 4428085.

It is an arithmetic number, because the mean of its divisors is an integer number (50662712100).

Almost surely, 2^{1311222111124} is an apocalyptic number.

It is an amenable number.

1311222111124 is a deficient number, since it is larger than the sum of its proper divisors (1120588069676).

1311222111124 is a wasteful number, since it uses less digits than its factorization.

1311222111124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307672 (or 307670 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

Adding to 1311222111124 its reverse (4211112221131), we get a palindrome (5522334332255).

The spelling of 1311222111124 in words is "one trillion, three hundred eleven billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty-four".