11100120202220 has 192 divisors, whose sum is σ = 28362871111680. Its totient is φ = 3568931712000.

The previous prime is 11100120202201. The next prime is 11100120202319. The reversal of 11100120202220 is 2220202100111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 11100120202195 and 11100120202204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20332586 + ... + 20871374.

It is an arithmetic number, because the mean of its divisors is an integer number (147723287040).

Almost surely, 2^{11100120202220} is an apocalyptic number.

11100120202220 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 11100120202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14181435555840).

11100120202220 is an abundant number, since it is smaller than the sum of its proper divisors (17262750909460).

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

11100120202220 is a wasteful number, since it uses less digits than its factorization.

11100120202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538984 (or 538982 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11100120202220 its reverse (2220202100111), we get a palindrome (13320322302331).

The spelling of 11100120202220 in words is "eleven trillion, one hundred billion, one hundred twenty million, two hundred two thousand, two hundred twenty".