11221020200100 has 72 divisors (see below), whose sum is σ = 32466702241120. Its totient is φ = 2992221319680.

The previous prime is 11221020200041. The next prime is 11221020200101. The reversal of 11221020200100 is 100202012211.

It is a super-2 number, since 2×11221020200100² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11221020200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19458519 + ... + 20026881.

Almost surely, 2^{11221020200100} is an apocalyptic number.

11221020200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221020200100 is an abundant number, since it is smaller than the sum of its proper divisors (21245682041020).

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

11221020200100 is a wasteful number, since it uses less digits than its factorization.

11221020200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634189 (or 634182 counting only the distinct ones).

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

Adding to 11221020200100 its reverse (100202012211), we get a palindrome (11321222212311).

The spelling of 11221020200100 in words is "eleven trillion, two hundred twenty-one billion, twenty million, two hundred thousand, one hundred".