22143033344 has 56 divisors (see below), whose sum is σ = 45364133808. Its totient is φ = 10801315840.

The previous prime is 22143033313. The next prime is 22143033347. The reversal of 22143033344 is 44333034122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143033347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302909 + ... + 368835.

It is an arithmetic number, because the mean of its divisors is an integer number (810073818).

Almost surely, 2^22143033344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22143033344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22682066904).

22143033344 is an abundant number, since it is smaller than the sum of its proper divisors (23221100464).

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

22143033344 is an frugal number, since it uses more digits than its factorization.

22143033344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65994 (or 65970 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 22143033344 its reverse (44333034122), we get a palindrome (66476067466).

The spelling of 22143033344 in words is "twenty-two billion, one hundred forty-three million, thirty-three thousand, three hundred forty-four".