1191092921212 has 24 divisors (see below), whose sum is σ = 2097875753120. Its totient is φ = 591700524480.

The previous prime is 1191092921203. The next prime is 1191092921267. The reversal of 1191092921212 is 2121292901911.

It is a super-2 number, since 2×1191092921212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7526137 + ... + 7682767.

Almost surely, 2^{1191092921212} is an apocalyptic number.

It is an amenable number.

1191092921212 is a deficient number, since it is larger than the sum of its proper divisors (906782831908).

1191092921212 is a wasteful number, since it uses less digits than its factorization.

1191092921212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168901 (or 168899 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 1191092921212 in words is "one trillion, one hundred ninety-one billion, ninety-two million, nine hundred twenty-one thousand, two hundred twelve".