22112012120111 has 4 divisors (see below), whose sum is σ = 22112021524824. Its totient is φ = 22112002715400.

The previous prime is 22112012120089. The next prime is 22112012120113. The reversal of 22112012120111 is 11102121021122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112012120111 is a prime.

It is a super-2 number, since 2×22112012120111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22112012120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112012120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333441 + ... + 7047621.

It is an arithmetic number, because the mean of its divisors is an integer number (5528005381206).

Almost surely, 2^{22112012120111} is an apocalyptic number.

22112012120111 is a deficient number, since it is larger than the sum of its proper divisors (9404713).

22112012120111 is an equidigital number, since it uses as much as digits as its factorization.

22112012120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404712.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22112012120111 its reverse (11102121021122), we get a palindrome (33214133141233).

The spelling of 22112012120111 in words is "twenty-two trillion, one hundred twelve billion, twelve million, one hundred twenty thousand, one hundred eleven".