22011112011 has 32 divisors (see below), whose sum is σ = 33785259520. Its totient is φ = 12486265344.

The previous prime is 22011112007. The next prime is 22011112069. The reversal of 22011112011 is 11021111022.

It is not a de Polignac number, because 22011112011 - 2² = 22011112007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011112111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3450621 + ... + 3456993.

It is an arithmetic number, because the mean of its divisors is an integer number (1055789360).

Almost surely, 2^22011112011 is an apocalyptic number.

22011112011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22011112011 is a deficient number, since it is larger than the sum of its proper divisors (11774147509).

22011112011 is a wasteful number, since it uses less digits than its factorization.

22011112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22011112011 its reverse (11021111022), we get a palindrome (33032223033).

The spelling of 22011112011 in words is "twenty-two billion, eleven million, one hundred twelve thousand, eleven".