111100221212022 has 192 divisors, whose sum is σ = 284234296714368. Its totient is φ = 30700021248000.

The previous prime is 111100221212017. The next prime is 111100221212039. The reversal of 111100221212022 is 220212122001111.

111100221212022 is a `hidden beast` number, since 111 + 100 + 221 + 212 + 0 + 22 = 666.

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 = 111100221211986 and 111100221212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1874099022 + ... + 1874158302.

It is an arithmetic number, because the mean of its divisors is an integer number (1480386962054).

Almost surely, 2^{111100221212022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100221212022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142117148357184).

111100221212022 is an abundant number, since it is smaller than the sum of its proper divisors (173134075502346).

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

111100221212022 is a wasteful number, since it uses less digits than its factorization.

111100221212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61735 (or 61732 counting only the distinct ones).

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

Adding to 111100221212022 its reverse (220212122001111), we get a palindrome (331312343213133).

It can be divided in two parts, 111100 and 221212022, that added together give a palindrome (221323122).

The spelling of 111100221212022 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, two hundred twelve thousand, twenty-two".