22211222112000 has 576 divisors, whose sum is σ = 82009014796800. Its totient is φ = 5920300339200.

The previous prime is 22211222111993. The next prime is 22211222112029. The reversal of 22211222112000 is 21122211222.

It is a happy number.

22211222112000 is a `hidden beast` number, since 22 + 211 + 22 + 211 + 200 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2539291627 + ... + 2539300373.

It is an arithmetic number, because the mean of its divisors is an integer number (142376761800).

Almost surely, 2^{22211222112000} is an apocalyptic number.

22211222112000 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 22211222112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41004507398400).

22211222112000 is an abundant number, since it is smaller than the sum of its proper divisors (59797792684800).

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

22211222112000 is an equidigital number, since it uses as much as digits as its factorization.

22211222112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11726 (or 11696 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22211222112000 its reverse (21122211222), we get a palindrome (22232344323222).

The spelling of 22211222112000 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand".