11121204000000 has 252 divisors, whose sum is σ = 36997842671552. Its totient is φ = 2965651200000.

The previous prime is 11121203999989. The next prime is 11121204000043. The reversal of 11121204000000 is 40212111.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11121204000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11536617 + ... + 12463383.

Almost surely, 2^{11121204000000} is an apocalyptic number.

11121204000000 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 11121204000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18498921335776).

11121204000000 is an abundant number, since it is smaller than the sum of its proper divisors (25876638671552).

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

11121204000000 is an frugal number, since it uses more digits than its factorization.

11121204000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926816 (or 926777 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11121204000000 its reverse (40212111), we get a palindrome (11121244212111).

The spelling of 11121204000000 in words is "eleven trillion, one hundred twenty-one billion, two hundred four million", and thus it is an aban number.