22222220111011 has 4 divisors (see below), whose sum is σ = 22222419655432. Its totient is φ = 22222020566592.

The previous prime is 22222220110963. The next prime is 22222220111041. The reversal of 22222220111011 is 11011102222222.

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 22222220111011 - 2¹⁵ = 22222220078243 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 22222220111011.

It is not an unprimeable number, because it can be changed into a prime (22222220111041) 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, 99605070 + ... + 99827923.

It is an arithmetic number, because the mean of its divisors is an integer number (5555604913858).

Almost surely, 2^{22222220111011} is an apocalyptic number.

22222220111011 is a deficient number, since it is larger than the sum of its proper divisors (199544421).

22222220111011 is a wasteful number, since it uses less digits than its factorization.

22222220111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199544420.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22222220111011 its reverse (11011102222222), we get a palindrome (33233322333233).

The spelling of 22222220111011 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred eleven thousand, eleven".