11222201120100 has 144 divisors (see below), whose sum is σ = 32877758063808. Its totient is φ = 2955144591360.

The previous prime is 11222201120027. The next prime is 11222201120107. The reversal of 11222201120100 is 102110222211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11222201120100.

It is not an unprimeable number, because it can be changed into a prime (11222201120107) 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, 9488832 + ... + 10605768.

It is an arithmetic number, because the mean of its divisors is an integer number (228317764332).

Almost surely, 2^{11222201120100} is an apocalyptic number.

11222201120100 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 11222201120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16438879031904).

11222201120100 is an abundant number, since it is smaller than the sum of its proper divisors (21655556943708).

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

11222201120100 is a wasteful number, since it uses less digits than its factorization.

11222201120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117374 (or 1117367 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11222201120100 its reverse (102110222211), we get a palindrome (11324311342311).

The spelling of 11222201120100 in words is "eleven trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty thousand, one hundred".