22122321443200 has 192 divisors, whose sum is σ = 59772837150720. Its totient is φ = 8023471769600.

The previous prime is 22122321443063. The next prime is 22122321443237. The reversal of 22122321443200 is 234412322122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12661137 + ... + 14302063.

It is an arithmetic number, because the mean of its divisors is an integer number (311316860160).

Almost surely, 2^{22122321443200} is an apocalyptic number.

22122321443200 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 22122321443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29886418575360).

22122321443200 is an abundant number, since it is smaller than the sum of its proper divisors (37650515707520).

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

22122321443200 is a wasteful number, since it uses less digits than its factorization.

22122321443200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641345 (or 1641328 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22122321443200 its reverse (234412322122), we get a palindrome (22356733765322).

The spelling of 22122321443200 in words is "twenty-two trillion, one hundred twenty-two billion, three hundred twenty-one million, four hundred forty-three thousand, two hundred".