11112220211100 has 72 divisors (see below), whose sum is σ = 32204854101168. Its totient is φ = 2958328128000.

The previous prime is 11112220211093. The next prime is 11112220211111. The reversal of 11112220211100 is 111202221111.

It is a happy number.

11112220211100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11112220211100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30635619 + ... + 30996218.

It is an arithmetic number, because the mean of its divisors is an integer number (447289640294).

Almost surely, 2^{11112220211100} is an apocalyptic number.

11112220211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112220211100 is an abundant number, since it is smaller than the sum of its proper divisors (21092633890068).

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

11112220211100 is a wasteful number, since it uses less digits than its factorization.

11112220211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61632455 (or 61632448 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112220211100 its reverse (111202221111), we get a palindrome (11223422432211).

The spelling of 11112220211100 in words is "eleven trillion, one hundred twelve billion, two hundred twenty million, two hundred eleven thousand, one hundred".