22111330140 has 288 divisors, whose sum is σ = 74101547520. Its totient is φ = 5317627392.

The previous prime is 22111330139. The next prime is 22111330147. The reversal of 22111330140 is 4103311122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111330147) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5160439 + ... + 5164721.

It is an arithmetic number, because the mean of its divisors is an integer number (257297040).

Almost surely, 2^22111330140 is an apocalyptic number.

22111330140 is a gapful number since it is divisible by the number (20) 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 22111330140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37050773760).

22111330140 is an abundant number, since it is smaller than the sum of its proper divisors (51990217380).

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

22111330140 is a wasteful number, since it uses less digits than its factorization.

22111330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4388 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22111330140 its reverse (4103311122), we get a palindrome (26214641262).

The spelling of 22111330140 in words is "twenty-two billion, one hundred eleven million, three hundred thirty thousand, one hundred forty".