11201211100 has 18 divisors (see below), whose sum is σ = 24306628304. Its totient is φ = 4480484400.

The previous prime is 11201211017. The next prime is 11201211211. The reversal of 11201211100 is 111210211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 56005956 + ... + 56006155.

Almost surely, 2^11201211100 is an apocalyptic number.

11201211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201211100 is an abundant number, since it is smaller than the sum of its proper divisors (13105417204).

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

11201211100 is a wasteful number, since it uses less digits than its factorization.

11201211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112012125 (or 112012118 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11201211100 its reverse (111210211), we get a palindrome (11312421311).

The spelling of 11201211100 in words is "eleven billion, two hundred one million, two hundred eleven thousand, one hundred".