111100221021222 has 16 divisors (see below), whose sum is σ = 246889380047280. Its totient is φ = 37033407007056.

The previous prime is 111100221021217. The next prime is 111100221021233. The reversal of 111100221021222 is 222120122001111.

111100221021222 is a `hidden beast` number, since 111 + 100 + 2 + 210 + 21 + 222 = 666.

It is a super-2 number, since 2×111100221021222² (a number of 29 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 111100221021195 and 111100221021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028705750143 + ... + 1028705750250.

It is an arithmetic number, because the mean of its divisors is an integer number (15430586252955).

Almost surely, 2^{111100221021222} is an apocalyptic number.

111100221021222 is an abundant number, since it is smaller than the sum of its proper divisors (135789159026058).

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

111100221021222 is a wasteful number, since it uses less digits than its factorization.

111100221021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057411500404 (or 2057411500398 counting only the distinct ones).

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

Adding to 111100221021222 its reverse (222120122001111), we get a palindrome (333220343022333).

The spelling of 111100221021222 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-two".