22111010222111 has 4 divisors (see below), whose sum is σ = 22147436928192. Its totient is φ = 22074583516032.

The previous prime is 22111010222053. The next prime is 22111010222123. The reversal of 22111010222111 is 11122201011122.

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

It is a cyclic number.

It is not a de Polignac number, because 22111010222111 - 2²² = 22111006027807 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 22111010222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111010222311) 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, 18213352130 + ... + 18213353343.

It is an arithmetic number, because the mean of its divisors is an integer number (5536859232048).

Almost surely, 2^{22111010222111} is an apocalyptic number.

22111010222111 is a deficient number, since it is larger than the sum of its proper divisors (36426706081).

22111010222111 is an equidigital number, since it uses as much as digits as its factorization.

22111010222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36426706080.

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

Adding to 22111010222111 its reverse (11122201011122), we get a palindrome (33233211233233).

The spelling of 22111010222111 in words is "twenty-two trillion, one hundred eleven billion, ten million, two hundred twenty-two thousand, one hundred eleven".