22431043440000 has 960 divisors, whose sum is σ = 87679002050640. Its totient is φ = 5469640704000.

The previous prime is 22431043439971. The next prime is 22431043440017. The reversal of 22431043440000 is 4434013422.

It is a happy number.

22431043440000 is a `hidden beast` number, since 2 + 2 + 4 + 310 + 4 + 344 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1001508802 + ... + 1001531198.

Almost surely, 2^{22431043440000} is an apocalyptic number.

22431043440000 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 22431043440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43839501025320).

22431043440000 is an abundant number, since it is smaller than the sum of its proper divisors (65247958610640).

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

22431043440000 is a wasteful number, since it uses less digits than its factorization.

22431043440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22557 (or 22527 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22431043440000 its reverse (4434013422), we get a palindrome (22435477453422).

The spelling of 22431043440000 in words is "twenty-two trillion, four hundred thirty-one billion, forty-three million, four hundred forty thousand".