1100112222220 has 384 divisors, whose sum is σ = 2781450814464. Its totient is φ = 360960000000.

The previous prime is 1100112222199. The next prime is 1100112222221. The reversal of 1100112222220 is 222222110011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1100112222194 and 1100112222203.

It is not an unprimeable number, because it can be changed into a prime (1100112222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3887322199 + ... + 3887322481.

It is an arithmetic number, because the mean of its divisors is an integer number (7243361496).

Almost surely, 2^{1100112222220} is an apocalyptic number.

1100112222220 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 1100112222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390725407232).

1100112222220 is an abundant number, since it is smaller than the sum of its proper divisors (1681338592244).

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

1100112222220 is a wasteful number, since it uses less digits than its factorization.

1100112222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 711 counting only the distinct ones).

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

Adding to 1100112222220 its reverse (222222110011), we get a palindrome (1322334332231).

It can be divided in two parts, 11001 and 12222220, that added together give a palindrome (12233221).

The spelling of 1100112222220 in words is "one trillion, one hundred billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty".