22110121211111 has 8 divisors (see below), whose sum is σ = 22251073868784. Its totient is φ = 21969170121600.

The previous prime is 22110121211063. The next prime is 22110121211149. The reversal of 22110121211111 is 11111212101122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22110121211111 - 2⁶ = 22110121211047 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 22110121211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110121211161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43519196 + ... + 44024318.

It is an arithmetic number, because the mean of its divisors is an integer number (2781384233598).

Almost surely, 2^{22110121211111} is an apocalyptic number.

22110121211111 is a deficient number, since it is larger than the sum of its proper divisors (140952657673).

22110121211111 is a wasteful number, since it uses less digits than its factorization.

22110121211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784081.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22110121211111 its reverse (11111212101122), we get a palindrome (33221333312233).

The spelling of 22110121211111 in words is "twenty-two trillion, one hundred ten billion, one hundred twenty-one million, two hundred eleven thousand, one hundred eleven".