22143411202400 has 144 divisors (see below), whose sum is σ = 56411553492000. Its totient is φ = 8471717928960.

The previous prime is 22143411202379. The next prime is 22143411202411. The reversal of 22143411202400 is 420211434122.

It is a self number, because there is not a number n which added to its sum of digits gives 22143411202400.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 398313806 + ... + 398369394.

It is an arithmetic number, because the mean of its divisors is an integer number (391746899250).

Almost surely, 2^{22143411202400} is an apocalyptic number.

22143411202400 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 22143411202400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28205776746000).

22143411202400 is an abundant number, since it is smaller than the sum of its proper divisors (34268142289600).

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

22143411202400 is a wasteful number, since it uses less digits than its factorization.

22143411202400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77281 (or 77268 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 22143411202400 its reverse (420211434122), we get a palindrome (22563622636522).

The spelling of 22143411202400 in words is "twenty-two trillion, one hundred forty-three billion, four hundred eleven million, two hundred two thousand, four hundred".