12111102220100 has 72 divisors (see below), whose sum is σ = 28577498214720. Its totient is φ = 4428376087680.

The previous prime is 12111102220093. The next prime is 12111102220111. The reversal of 12111102220100 is 102220111121.

It is a super-2 number, since 2×12111102220100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45090530 + ... + 45358329.

Almost surely, 2^{12111102220100} is an apocalyptic number.

12111102220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111102220100 is an abundant number, since it is smaller than the sum of its proper divisors (16466395994620).

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

12111102220100 is a wasteful number, since it uses less digits than its factorization.

12111102220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90448989 (or 90448982 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111102220100 its reverse (102220111121), we get a palindrome (12213322331221).

The spelling of 12111102220100 in words is "twelve trillion, one hundred eleven billion, one hundred two million, two hundred twenty thousand, one hundred".