11121001222104 has 192 divisors, whose sum is σ = 31312008000000. Its totient is φ = 3697862440320.

The previous prime is 11121001222103. The next prime is 11121001222129. The reversal of 11121001222104 is 40122210012111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121001222103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1482994147 + ... + 1483001645.

It is an arithmetic number, because the mean of its divisors is an integer number (163083375000).

Almost surely, 2^{11121001222104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121001222104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15656004000000).

11121001222104 is an abundant number, since it is smaller than the sum of its proper divisors (20191006777896).

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

11121001222104 is a wasteful number, since it uses less digits than its factorization.

11121001222104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300 (or 9284 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11121001222104 its reverse (40122210012111), we get a palindrome (51243211234215).

The spelling of 11121001222104 in words is "eleven trillion, one hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred four".