2100211002221 has 8 divisors (see below), whose sum is σ = 2164706057088. Its totient is φ = 2036685798000.

The previous prime is 2100211002193. The next prime is 2100211002229. The reversal of 2100211002221 is 1222001120012.

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-2100211002221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100211002196 and 2100211002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100211002229) 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, 242458265 + ... + 242466926.

It is an arithmetic number, because the mean of its divisors is an integer number (270588257136).

Almost surely, 2^{2100211002221} is an apocalyptic number.

It is an amenable number.

2100211002221 is a deficient number, since it is larger than the sum of its proper divisors (64495054867).

2100211002221 is an equidigital number, since it uses as much as digits as its factorization.

2100211002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484925323.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100211002221 its reverse (1222001120012), we get a palindrome (3322212122233).

The spelling of 2100211002221 in words is "two trillion, one hundred billion, two hundred eleven million, two thousand, two hundred twenty-one".