22011221200100 has 72 divisors (see below), whose sum is σ = 52612452879168. Its totient is φ = 7926370876800.

The previous prime is 22011221200043. The next prime is 22011221200103. The reversal of 22011221200100 is 100212211022.

It is not an unprimeable number, because it can be changed into a prime (22011221200103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97023599 + ... + 97250198.

Almost surely, 2^{22011221200100} is an apocalyptic number.

22011221200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011221200100 is an abundant number, since it is smaller than the sum of its proper divisors (30601231679068).

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

22011221200100 is a wasteful number, since it uses less digits than its factorization.

22011221200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194273925 (or 194273918 counting only the distinct ones).

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

Adding to 22011221200100 its reverse (100212211022), we get a palindrome (22111433411122).

The spelling of 22011221200100 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, two hundred thousand, one hundred".