22301440140 has 192 divisors, whose sum is σ = 76599419904. Its totient is φ = 4731789312.

The previous prime is 22301440121. The next prime is 22301440141. The reversal of 22301440140 is 4104410322.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22301440141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 499827 + ... + 542613.

It is an arithmetic number, because the mean of its divisors is an integer number (398955312).

Almost surely, 2^22301440140 is an apocalyptic number.

22301440140 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 22301440140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38299709952).

22301440140 is an abundant number, since it is smaller than the sum of its proper divisors (54297979764).

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

22301440140 is a wasteful number, since it uses less digits than its factorization.

22301440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42896 (or 42894 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22301440140 its reverse (4104410322), we get a palindrome (26405850462).

The spelling of 22301440140 in words is "twenty-two billion, three hundred one million, four hundred forty thousand, one hundred forty".