22220112011 has 4 divisors (see below), whose sum is σ = 22986322800. Its totient is φ = 21453901224.

The previous prime is 22220112007. The next prime is 22220112037. The reversal of 22220112011 is 11021102222.

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 22220112011 - 2² = 22220112007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383105351 + ... + 383105408.

It is an arithmetic number, because the mean of its divisors is an integer number (5746580700).

Almost surely, 2^22220112011 is an apocalyptic number.

22220112011 is a deficient number, since it is larger than the sum of its proper divisors (766210789).

22220112011 is an equidigital number, since it uses as much as digits as its factorization.

22220112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766210788.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22220112011 its reverse (11021102222), we get a palindrome (33241214233).

The spelling of 22220112011 in words is "twenty-two billion, two hundred twenty million, one hundred twelve thousand, eleven".