22113111111101 has 4 divisors (see below), whose sum is σ = 22113170712252. Its totient is φ = 22113051509952.

The previous prime is 22113111111079. The next prime is 22113111111107. The reversal of 22113111111101 is 10111111131122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14199888939076 + 7913222172025 = 3768274^2 + 2813045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22113111111101 is a prime.

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 22113111111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113111111107) 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, 29240540 + ... + 29987253.

It is an arithmetic number, because the mean of its divisors is an integer number (5528292678063).

Almost surely, 2^{22113111111101} is an apocalyptic number.

It is an amenable number.

22113111111101 is a deficient number, since it is larger than the sum of its proper divisors (59601151).

22113111111101 is an equidigital number, since it uses as much as digits as its factorization.

22113111111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59601150.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 22113111111101 its reverse (10111111131122), we get a palindrome (32224222242223).

The spelling of 22113111111101 in words is "twenty-two trillion, one hundred thirteen billion, one hundred eleven million, one hundred eleven thousand, one hundred one".