11122220000000 has 288 divisors, whose sum is σ = 29212757246400. Its totient is φ = 4214592000000.

The previous prime is 11122219999993. The next prime is 11122220000033. The reversal of 11122220000000 is 2222111.

It is a happy number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379985366 + ... + 380014634.

Almost surely, 2^{11122220000000} is an apocalyptic number.

11122220000000 is a gapful number since it is divisible by the number (10) 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 11122220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606378623200).

11122220000000 is an abundant number, since it is smaller than the sum of its proper divisors (18090537246400).

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

11122220000000 is an frugal number, since it uses more digits than its factorization.

11122220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29339 (or 29295 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11122220000000 its reverse (2222111), we get a palindrome (11122222222111).

The spelling of 11122220000000 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty million", and thus it is an aban number.