111210220211100 has 72 divisors (see below), whose sum is σ = 335758160519040. Its totient is φ = 28366664863680.

The previous prime is 111210220211093. The next prime is 111210220211171. The reversal of 111210220211100 is 1112022012111.

It is a happy number.

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 111210220211100.

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, 8058704710 + ... + 8058718509.

Almost surely, 2^{111210220211100} is an apocalyptic number.

111210220211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210220211100 is an abundant number, since it is smaller than the sum of its proper divisors (224547940307940).

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

111210220211100 is a wasteful number, since it uses less digits than its factorization.

111210220211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16117423259 (or 16117423252 counting only the distinct ones).

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

Adding to 111210220211100 its reverse (1112022012111), we get a palindrome (112322242223211).

The spelling of 111210220211100 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twenty million, two hundred eleven thousand, one hundred".