11121122111000 has 128 divisors (see below), whose sum is σ = 28393459960320. Its totient is φ = 4043436400000.

The previous prime is 11121122110997. The next prime is 11121122111009. The reversal of 11121122111000 is 11122112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121122111009) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 76608485 + ... + 76753515.

It is an arithmetic number, because the mean of its divisors is an integer number (221823905940).

Almost surely, 2^{11121122111000} is an apocalyptic number.

11121122111000 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 11121122111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14196729980160).

11121122111000 is an abundant number, since it is smaller than the sum of its proper divisors (17272337849320).

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

11121122111000 is a wasteful number, since it uses less digits than its factorization.

11121122111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152034 (or 152020 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11121122111000 its reverse (11122112111), we get a palindrome (11132244223111).

The spelling of 11121122111000 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand".