22043021140 has 96 divisors (see below), whose sum is σ = 53304459264. Its totient is φ = 7500524160.

The previous prime is 22043021137. The next prime is 22043021141. The reversal of 22043021140 is 4112034022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043021141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12170835 + ... + 12172645.

It is an arithmetic number, because the mean of its divisors is an integer number (555254784).

Almost surely, 2^22043021140 is an apocalyptic number.

22043021140 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 22043021140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26652229632).

22043021140 is an abundant number, since it is smaller than the sum of its proper divisors (31261438124).

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

22043021140 is a wasteful number, since it uses less digits than its factorization.

22043021140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22043021140 its reverse (4112034022), we get a palindrome (26155055162).

The spelling of 22043021140 in words is "twenty-two billion, forty-three million, twenty-one thousand, one hundred forty".