1112112102222 has 96 divisors (see below), whose sum is σ = 2659006621440. Its totient is φ = 333111461760.

The previous prime is 1112112102193. The next prime is 1112112102223. The reversal of 1112112102222 is 2222012112111.

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 = 1112112102195 and 1112112102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112112102223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69123063 + ... + 69139149.

It is an arithmetic number, because the mean of its divisors is an integer number (27697985640).

Almost surely, 2^{1112112102222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112112102222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329503310720).

1112112102222 is an abundant number, since it is smaller than the sum of its proper divisors (1546894519218).

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

1112112102222 is a wasteful number, since it uses less digits than its factorization.

1112112102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118 (or 20115 counting only the distinct ones).

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

Adding to 1112112102222 its reverse (2222012112111), we get a palindrome (3334124214333).

The spelling of 1112112102222 in words is "one trillion, one hundred twelve billion, one hundred twelve million, one hundred two thousand, two hundred twenty-two".