2100110000221 has 8 divisors (see below), whose sum is σ = 2152674142784. Its totient is φ = 2047715147520.

The previous prime is 2100110000203. The next prime is 2100110000257. The reversal of 2100110000221 is 1220000110012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100110000221 - 2¹⁷ = 2100109869149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100110000198 and 2100110000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100110000321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42297345 + ... + 42346966.

It is an arithmetic number, because the mean of its divisors is an integer number (269084267848).

Almost surely, 2^{2100110000221} is an apocalyptic number.

It is an amenable number.

2100110000221 is a deficient number, since it is larger than the sum of its proper divisors (52564142563).

2100110000221 is an equidigital number, since it uses as much as digits as its factorization.

2100110000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84644931.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2100110000221 its reverse (1220000110012), we get a palindrome (3320110110233).

The spelling of 2100110000221 in words is "two trillion, one hundred billion, one hundred ten million, two hundred twenty-one", and thus it is an aban number.