1121100001100 has 18 divisors (see below), whose sum is σ = 2432787002604. Its totient is φ = 448440000400.

The previous prime is 1121100001093. The next prime is 1121100001121. The reversal of 1121100001100 is 11000011211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5605499906 + ... + 5605500105.

It is an arithmetic number, because the mean of its divisors is an integer number (135154833478).

Almost surely, 2^{1121100001100} is an apocalyptic number.

1121100001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121100001100 is an abundant number, since it is smaller than the sum of its proper divisors (1311687001504).

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

1121100001100 is a wasteful number, since it uses less digits than its factorization.

1121100001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11211000025 (or 11211000018 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1121100001100 its reverse (11000011211), we get a palindrome (1132100012311).

The spelling of 1121100001100 in words is "one trillion, one hundred twenty-one billion, one hundred million, one thousand, one hundred".