22230222140 has 192 divisors, whose sum is σ = 56747851776. Its totient is φ = 7153920000.

The previous prime is 22230222137. The next prime is 22230222149. The reversal of 22230222140 is 4122203222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230222149) 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, 48221510 + ... + 48221970.

It is an arithmetic number, because the mean of its divisors is an integer number (295561728).

Almost surely, 2^22230222140 is an apocalyptic number.

22230222140 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 22230222140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28373925888).

22230222140 is an abundant number, since it is smaller than the sum of its proper divisors (34517629636).

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

22230222140 is a wasteful number, since it uses less digits than its factorization.

22230222140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22230222140 its reverse (4122203222), we get a palindrome (26352425362).

It can be divided in two parts, 222302 and 22140, that added together give a palindrome (244442).

The spelling of 22230222140 in words is "twenty-two billion, two hundred thirty million, two hundred twenty-two thousand, one hundred forty".