22112220000000 has 576 divisors, whose sum is σ = 79224758121600. Its totient is φ = 5442816000000.

The previous prime is 22112219999999. The next prime is 22112220000001. The reversal of 22112220000000 is 2221122.

It is an interprime number because it is at equal distance from previous prime (22112219999999) and next prime (22112220000001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112220000001) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 779985826 + ... + 780014174.

It is an arithmetic number, because the mean of its divisors is an integer number (137542982850).

Almost surely, 2^{22112220000000} is an apocalyptic number.

22112220000000 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 22112220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39612379060800).

22112220000000 is an abundant number, since it is smaller than the sum of its proper divisors (57112538121600).

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

22112220000000 is an frugal number, since it uses more digits than its factorization.

22112220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28416 (or 28372 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22112220000000 its reverse (2221122), we get a palindrome (22112222221122).

The spelling of 22112220000000 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty million", and thus it is an aban number.