22123112320320 has 448 divisors, whose sum is σ = 79432011417600. Its totient is φ = 5167573770240.

The previous prime is 22123112320303. The next prime is 22123112320321. The reversal of 22123112320320 is 2302321132122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123112320321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149064711 + ... + 149213049.

Almost surely, 2^{22123112320320} is an apocalyptic number.

22123112320320 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 22123112320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39716005708800).

22123112320320 is an abundant number, since it is smaller than the sum of its proper divisors (57308899097280).

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

22123112320320 is a wasteful number, since it uses less digits than its factorization.

22123112320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148886 (or 148876 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22123112320320 its reverse (2302321132122), we get a palindrome (24425433452442).

The spelling of 22123112320320 in words is "twenty-two trillion, one hundred twenty-three billion, one hundred twelve million, three hundred twenty thousand, three hundred twenty".