1331133231212 has 48 divisors (see below), whose sum is σ = 2555762227200. Its totient is φ = 604272545280.

The previous prime is 1331133231163. The next prime is 1331133231227. The reversal of 1331133231212 is 2121323311331.

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, 2500037 + ... + 2985372.

It is an arithmetic number, because the mean of its divisors is an integer number (53245046400).

Almost surely, 2^{1331133231212} is an apocalyptic number.

It is an amenable number.

1331133231212 is a deficient number, since it is larger than the sum of its proper divisors (1224628995988).

1331133231212 is a wasteful number, since it uses less digits than its factorization.

1331133231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485566 (or 5485564 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

Adding to 1331133231212 its reverse (2121323311331), we get a palindrome (3452456542543).

The spelling of 1331133231212 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred twelve".