22101111136 has 96 divisors (see below), whose sum is σ = 48942744480. Its totient is φ = 9756205056.

The previous prime is 22101111127. The next prime is 22101111167. The reversal of 22101111136 is 63111110122.

It is a super-2 number, since 2×22101111136² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 895960 + ... + 920296.

It is an arithmetic number, because the mean of its divisors is an integer number (509820255).

Almost surely, 2^22101111136 is an apocalyptic number.

22101111136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22101111136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24471372240).

22101111136 is an abundant number, since it is smaller than the sum of its proper divisors (26841633344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22101111136 is a wasteful number, since it uses less digits than its factorization.

22101111136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24456 (or 24448 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 22101111136 its reverse (63111110122), we get a palindrome (85212221258).

The spelling of 22101111136 in words is "twenty-two billion, one hundred one million, one hundred eleven thousand, one hundred thirty-six".