22110222211111 has 4 divisors (see below), whose sum is σ = 22110233277424. Its totient is φ = 22110211144800.

The previous prime is 22110222211057. The next prime is 22110222211127. The reversal of 22110222211111 is 11111222201122.

It is a happy number.

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 not a de Polignac number, because 22110222211111 - 2¹¹ = 22110222209063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110222211151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608075 + ... + 6841516.

It is an arithmetic number, because the mean of its divisors is an integer number (5527558319356).

Almost surely, 2^{22110222211111} is an apocalyptic number.

22110222211111 is a deficient number, since it is larger than the sum of its proper divisors (11066313).

22110222211111 is an equidigital number, since it uses as much as digits as its factorization.

22110222211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066312.

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

Adding to 22110222211111 its reverse (11111222201122), we get a palindrome (33221444412233).

The spelling of 22110222211111 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty-two million, two hundred eleven thousand, one hundred eleven".