1099857411912 has 64 divisors (see below), whose sum is σ = 3243819110400. Its totient is φ = 304108038720.

The previous prime is 1099857411907. The next prime is 1099857411953. The reversal of 1099857411912 is 2191147589901.

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, 105587862 + ... + 105598277.

It is an arithmetic number, because the mean of its divisors is an integer number (50684673600).

Almost surely, 2^{1099857411912} is an apocalyptic number.

1099857411912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1099857411912 is an abundant number, since it is smaller than the sum of its proper divisors (2143961698488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1099857411912 is a wasteful number, since it uses less digits than its factorization.

1099857411912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211186186 (or 211186182 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 57.

The spelling of 1099857411912 in words is "one trillion, ninety-nine billion, eight hundred fifty-seven million, four hundred eleven thousand, nine hundred twelve".