12220100111112 has 96 divisors (see below), whose sum is σ = 31840483389120. Its totient is φ = 3907454181120.

The previous prime is 12220100111077. The next prime is 12220100111123. The reversal of 12220100111112 is 21111100102221.

It is a happy number.

It is a super-3 number, since 3×12220100111112³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220100111091 and 12220100111100.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 286443 + ... + 4951994.

It is an arithmetic number, because the mean of its divisors is an integer number (331671701970).

Almost surely, 2^{12220100111112} is an apocalyptic number.

12220100111112 is a gapful number since it is divisible by the number (12) 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 12220100111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15920241694560).

12220100111112 is an abundant number, since it is smaller than the sum of its proper divisors (19620383278008).

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

12220100111112 is a wasteful number, since it uses less digits than its factorization.

12220100111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238591 (or 5238550 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12220100111112 its reverse (21111100102221), we get a palindrome (33331200213333).

The spelling of 12220100111112 in words is "twelve trillion, two hundred twenty billion, one hundred million, one hundred eleven thousand, one hundred twelve".