1099118812 has 12 divisors (see below), whose sum is σ = 2098317816. Its totient is φ = 499599440.

The previous prime is 1099118777. The next prime is 1099118827. The reversal of 1099118812 is 2188119901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12489943 + ... + 12490030.

It is an arithmetic number, because the mean of its divisors is an integer number (174859818).

Almost surely, 2^1099118812 is an apocalyptic number.

It is an amenable number.

1099118812 is a deficient number, since it is larger than the sum of its proper divisors (999199004).

1099118812 is a wasteful number, since it uses less digits than its factorization.

1099118812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24979988 (or 24979986 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 40.

The square root of 1099118812 is about 33152.9608330840. The cubic root of 1099118812 is about 1032.0043955004.

It can be divided in two parts, 1099 and 118812, that added together give a palindrome (119911).

The spelling of 1099118812 in words is "one billion, ninety-nine million, one hundred eighteen thousand, eight hundred twelve".