2100211111223 has 4 divisors (see below), whose sum is σ = 2107379067528. Its totient is φ = 2093043154920.

The previous prime is 2100211111183. The next prime is 2100211111247. The reversal of 2100211111223 is 3221111120012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100211111223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100211111123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3583977713 + ... + 3583978298.

It is an arithmetic number, because the mean of its divisors is an integer number (526844766882).

Almost surely, 2^{2100211111223} is an apocalyptic number.

2100211111223 is a deficient number, since it is larger than the sum of its proper divisors (7167956305).

2100211111223 is an equidigital number, since it uses as much as digits as its factorization.

2100211111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167956304.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2100211111223 its reverse (3221111120012), we get a palindrome (5321322231235).

The spelling of 2100211111223 in words is "two trillion, one hundred billion, two hundred eleven million, one hundred eleven thousand, two hundred twenty-three".