11211100100 has 36 divisors (see below), whose sum is σ = 25608517200. Its totient is φ = 4248416160.

The previous prime is 11211100097. The next prime is 11211100141. The reversal of 11211100100 is 100111211.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 2948390 + ... + 2952189.

It is an arithmetic number, because the mean of its divisors is an integer number (711347700).

Almost surely, 2^11211100100 is an apocalyptic number.

11211100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211100100 is an abundant number, since it is smaller than the sum of its proper divisors (14397417100).

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

11211100100 is a wasteful number, since it uses less digits than its factorization.

11211100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900612 (or 5900605 counting only the distinct ones).

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

Adding to 11211100100 its reverse (100111211), we get a palindrome (11311211311).

The spelling of 11211100100 in words is "eleven billion, two hundred eleven million, one hundred thousand, one hundred".