11212211211100 has 36 divisors (see below), whose sum is σ = 24581328229024. Its totient is φ = 4438648558080.

The previous prime is 11212211211079. The next prime is 11212211211109. The reversal of 11212211211100 is 111211221211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212211211109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577939332 + ... + 577958731.

Almost surely, 2^{11212211211100} is an apocalyptic number.

11212211211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212211211100 is an abundant number, since it is smaller than the sum of its proper divisors (13369117017924).

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

11212211211100 is a wasteful number, since it uses less digits than its factorization.

11212211211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155898174 (or 1155898167 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11212211211100 its reverse (111211221211), we get a palindrome (11323422432311).

The spelling of 11212211211100 in words is "eleven trillion, two hundred twelve billion, two hundred eleven million, two hundred eleven thousand, one hundred".