12001222200100 has 72 divisors (see below), whose sum is σ = 30455194645568. Its totient is φ = 4019013936000.

The previous prime is 12001222200089. The next prime is 12001222200101. The reversal of 12001222200100 is 100222210021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12001222200101) 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, 199325751 + ... + 199385950.

Almost surely, 2^{12001222200100} is an apocalyptic number.

12001222200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001222200100 is an abundant number, since it is smaller than the sum of its proper divisors (18453972445468).

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

12001222200100 is a wasteful number, since it uses less digits than its factorization.

12001222200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398711765 (or 398711758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12001222200100 its reverse (100222210021), we get a palindrome (12101444410121).

The spelling of 12001222200100 in words is "twelve trillion, one billion, two hundred twenty-two million, two hundred thousand, one hundred".