2100110112221 has 8 divisors (see below), whose sum is σ = 2364933381888. Its totient is φ = 1847604204000.

The previous prime is 2100110112197. The next prime is 2100110112223. The reversal of 2100110112221 is 1222110110012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100110112221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100110112196 and 2100110112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100110112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3079340000 + ... + 3079340681.

It is an arithmetic number, because the mean of its divisors is an integer number (295616672736).

Almost surely, 2^{2100110112221} is an apocalyptic number.

It is an amenable number.

2100110112221 is a deficient number, since it is larger than the sum of its proper divisors (264823269667).

2100110112221 is a wasteful number, since it uses less digits than its factorization.

2100110112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158680723.

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

Adding to 2100110112221 its reverse (1222110110012), we get a palindrome (3322220222233).

The spelling of 2100110112221 in words is "two trillion, one hundred billion, one hundred ten million, one hundred twelve thousand, two hundred twenty-one".