12220111122112 has 28 divisors (see below), whose sum is σ = 24253463934936. Its totient is φ = 6109002099200.

The previous prime is 12220111122091. The next prime is 12220111122113. The reversal of 12220111122112 is 21122111102221.

It is a happy number.

It is a super-2 number, since 2×12220111122112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12220111122112.

It is not an unprimeable number, because it can be changed into a prime (12220111122113) 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 3 ways as a sum of consecutive naturals, for example, 16086178 + ... + 16828705.

Almost surely, 2^{12220111122112} is an apocalyptic number.

It is an amenable number.

12220111122112 is a deficient number, since it is larger than the sum of its proper divisors (12033352812824).

12220111122112 is an equidigital number, since it uses as much as digits as its factorization.

12220111122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32920696 (or 32920686 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12220111122112 its reverse (21122111102221), we get a palindrome (33342222224333).

The spelling of 12220111122112 in words is "twelve trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twelve".