111000220122220 has 192 divisors, whose sum is σ = 276326560581120. Its totient is φ = 36922301337600.

The previous prime is 111000220122199. The next prime is 111000220122221. The reversal of 111000220122220 is 22221022000111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111000220122194 and 111000220122203.

It is not an unprimeable number, because it can be changed into a prime (111000220122221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1942606411 + ... + 1942663549.

It is an arithmetic number, because the mean of its divisors is an integer number (1439200836360).

Almost surely, 2^{111000220122220} is an apocalyptic number.

111000220122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111000220122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138163280290560).

111000220122220 is an abundant number, since it is smaller than the sum of its proper divisors (165326340458900).

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

111000220122220 is a wasteful number, since it uses less digits than its factorization.

111000220122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63296 (or 63294 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111000220122220 its reverse (22221022000111), we get a palindrome (133221242122331).

The spelling of 111000220122220 in words is "one hundred eleven trillion, two hundred twenty million, one hundred twenty-two thousand, two hundred twenty".