22234354140 has 96 divisors (see below), whose sum is σ = 63379330560. Its totient is φ = 5822413056.

The previous prime is 22234354139. The next prime is 22234354141. The reversal of 22234354140 is 4145343222.

It is an interprime number because it is at equal distance from previous prime (22234354139) and next prime (22234354141).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22234354098 and 22234354107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234354141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3951369 + ... + 3956991.

It is an arithmetic number, because the mean of its divisors is an integer number (660201360).

Almost surely, 2^22234354140 is an apocalyptic number.

22234354140 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 22234354140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31689665280).

22234354140 is an abundant number, since it is smaller than the sum of its proper divisors (41144976420).

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

22234354140 is a wasteful number, since it uses less digits than its factorization.

22234354140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811 (or 6809 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 22234354140 its reverse (4145343222), we get a palindrome (26379697362).

The spelling of 22234354140 in words is "twenty-two billion, two hundred thirty-four million, three hundred fifty-four thousand, one hundred forty".