12100200111221 has 16 divisors (see below), whose sum is σ = 12490998240000. Its totient is φ = 11714127984000.

The previous prime is 12100200111217. The next prime is 12100200111277. The reversal of 12100200111221 is 12211100200121.

It is a cyclic number.

It is not a de Polignac number, because 12100200111221 - 2² = 12100200111217 is a prime.

It is a super-2 number, since 2×12100200111221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100200111196 and 12100200111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100200111521) 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 15 ways as a sum of consecutive naturals, for example, 4626155 + ... + 6752903.

It is an arithmetic number, because the mean of its divisors is an integer number (780687390000).

Almost surely, 2^{12100200111221} is an apocalyptic number.

It is an amenable number.

12100200111221 is a deficient number, since it is larger than the sum of its proper divisors (390798128779).

12100200111221 is a wasteful number, since it uses less digits than its factorization.

12100200111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127860.

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

Adding to 12100200111221 its reverse (12211100200121), we get a palindrome (24311300311342).

The spelling of 12100200111221 in words is "twelve trillion, one hundred billion, two hundred million, one hundred eleven thousand, two hundred twenty-one".