22011023111 has 16 divisors (see below), whose sum is σ = 27851907840. Its totient is φ = 16895450880.

The previous prime is 22011023077. The next prime is 22011023117. The reversal of 22011023111 is 11132011022.

It is not a de Polignac number, because 22011023111 - 2¹⁰ = 22011022087 is a prime.

It is a super-2 number, since 2×22011023111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011023117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2128106 + ... + 2138423.

It is an arithmetic number, because the mean of its divisors is an integer number (1740744240).

Almost surely, 2^22011023111 is an apocalyptic number.

22011023111 is a deficient number, since it is larger than the sum of its proper divisors (5840884729).

22011023111 is a wasteful number, since it uses less digits than its factorization.

22011023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266614.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 22011023111 its reverse (11132011022), we get a palindrome (33143034133).

The spelling of 22011023111 in words is "twenty-two billion, eleven million, twenty-three thousand, one hundred eleven".