1331043221212 has 6 divisors (see below), whose sum is σ = 2329325637128. Its totient is φ = 665521610604.

The previous prime is 1331043221153. The next prime is 1331043221237. The reversal of 1331043221212 is 2121223401331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166380402648 + ... + 166380402655.

Almost surely, 2^{1331043221212} is an apocalyptic number.

It is an amenable number.

1331043221212 is a deficient number, since it is larger than the sum of its proper divisors (998282415916).

1331043221212 is a wasteful number, since it uses less digits than its factorization.

1331043221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332760805307 (or 332760805305 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1331043221212 its reverse (2121223401331), we get a palindrome (3452266622543).

The spelling of 1331043221212 in words is "one trillion, three hundred thirty-one billion, forty-three million, two hundred twenty-one thousand, two hundred twelve".