12211111111122 has 96 divisors (see below), whose sum is σ = 34207557156864. Its totient is φ = 3171717162000.

The previous prime is 12211111111099. The next prime is 12211111111123. The reversal of 12211111111122 is 22111111111221.

It is a super-2 number, since 2×12211111111122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12211111111095 and 12211111111104.

It is not an unprimeable number, because it can be changed into a prime (12211111111123) 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, 163116754 + ... + 163191597.

It is an arithmetic number, because the mean of its divisors is an integer number (356328720384).

Almost surely, 2^{12211111111122} is an apocalyptic number.

12211111111122 is an abundant number, since it is smaller than the sum of its proper divisors (21996446045742).

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

12211111111122 is a wasteful number, since it uses less digits than its factorization.

12211111111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326308386 (or 326308374 counting only the distinct ones).

The product of its digits is 16, while the sum is 18.

Adding to 12211111111122 its reverse (22111111111221), we get a palindrome (34322222222343).

Subtracting 12211111111122 from its reverse (22111111111221), we obtain a palindrome (9900000000099).

The spelling of 12211111111122 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty-two".