11111022212000 has 96 divisors (see below), whose sum is σ = 27304861618944. Its totient is φ = 4443581856000.

The previous prime is 11111022211979. The next prime is 11111022212039. The reversal of 11111022212000 is 21222011111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21468269 + ... + 21979731.

It is an arithmetic number, because the mean of its divisors is an integer number (284425641864).

Almost surely, 2^{11111022212000} is an apocalyptic number.

11111022212000 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 11111022212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13652430809472).

11111022212000 is an abundant number, since it is smaller than the sum of its proper divisors (16193839406944).

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

11111022212000 is an equidigital number, since it uses as much as digits as its factorization.

11111022212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516919 (or 516901 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11111022212000 its reverse (21222011111), we get a palindrome (11132244223111).

The spelling of 11111022212000 in words is "eleven trillion, one hundred eleven billion, twenty-two million, two hundred twelve thousand".