111100221212202 has 48 divisors (see below), whose sum is σ = 240986742647040. Its totient is φ = 36991934136576.

The previous prime is 111100221212173. The next prime is 111100221212231. The reversal of 111100221212202 is 202212122001111.

111100221212202 is a `hidden beast` number, since 111 + 100 + 221 + 212 + 20 + 2 = 666.

111100221212202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (111100221212173) and next prime (111100221212231).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 420978213 + ... + 421242039.

It is an arithmetic number, because the mean of its divisors is an integer number (5020557138480).

Almost surely, 2^{111100221212202} is an apocalyptic number.

111100221212202 is an abundant number, since it is smaller than the sum of its proper divisors (129886521434838).

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

111100221212202 is a wasteful number, since it uses less digits than its factorization.

111100221212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289947 (or 289944 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111100221212202 its reverse (202212122001111), we get a palindrome (313312343213313).

The spelling of 111100221212202 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".