11100120812 has 12 divisors (see below), whose sum is σ = 21191139816. Its totient is φ = 5045509440.

The previous prime is 11100120791. The next prime is 11100120821. The reversal of 11100120812 is 21802100111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126137693 + ... + 126137780.

It is an arithmetic number, because the mean of its divisors is an integer number (1765928318).

Almost surely, 2^11100120812 is an apocalyptic number.

It is an amenable number.

11100120812 is a deficient number, since it is larger than the sum of its proper divisors (10091019004).

11100120812 is a wasteful number, since it uses less digits than its factorization.

11100120812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252275488 (or 252275486 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11100120812 its reverse (21802100111), we get a palindrome (32902220923).

The spelling of 11100120812 in words is "eleven billion, one hundred million, one hundred twenty thousand, eight hundred twelve".