11101100220012 has 192 divisors, whose sum is σ = 29094769686528. Its totient is φ = 3264750720000.

The previous prime is 11101100219983. The next prime is 11101100220013. The reversal of 11101100220012 is 21002200110111.

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 11101100220012.

It is not an unprimeable number, because it can be changed into a prime (11101100220013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5933243437 + ... + 5933245307.

It is an arithmetic number, because the mean of its divisors is an integer number (151535258784).

Almost surely, 2^{11101100220012} is an apocalyptic number.

11101100220012 is a gapful number since it is divisible by the number (12) 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 11101100220012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14547384843264).

11101100220012 is an abundant number, since it is smaller than the sum of its proper divisors (17993669466516).

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

11101100220012 is a wasteful number, since it uses less digits than its factorization.

11101100220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11101100220012 its reverse (21002200110111), we get a palindrome (32103300330123).

The spelling of 11101100220012 in words is "eleven trillion, one hundred one billion, one hundred million, two hundred twenty thousand, twelve".