2101111223 has 8 divisors (see below), whose sum is σ = 2137565040. Its totient is φ = 2064807360.

The previous prime is 2101111217. The next prime is 2101111237. The reversal of 2101111223 is 3221111012.

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 2101111223 - 2¹⁰ = 2101110199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101111198 and 2101111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101111213) 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, 9038 + ... + 65451.

It is an arithmetic number, because the mean of its divisors is an integer number (267195630).

Almost surely, 2^2101111223 is an apocalyptic number.

2101111223 is a deficient number, since it is larger than the sum of its proper divisors (36453817).

2101111223 is an equidigital number, since it uses as much as digits as its factorization.

2101111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74977.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2101111223 is about 45837.8797829917. The cubic root of 2101111223 is about 1280.8049996063.

Adding to 2101111223 its reverse (3221111012), we get a palindrome (5322222235).

The spelling of 2101111223 in words is "two billion, one hundred one million, one hundred eleven thousand, two hundred twenty-three".