2211311121223 has 8 divisors (see below), whose sum is σ = 2213922791808. Its totient is φ = 2208700164864.

The previous prime is 2211311121199. The next prime is 2211311121233. The reversal of 2211311121223 is 3221211131122.

It is a happy number.

2211311121223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2211311121223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211311121194 and 2211311121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211311121233) 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, 6149290 + ... + 6498952.

It is an arithmetic number, because the mean of its divisors is an integer number (276740348976).

Almost surely, 2^{2211311121223} is an apocalyptic number.

2211311121223 is a deficient number, since it is larger than the sum of its proper divisors (2611670585).

2211311121223 is an equidigital number, since it uses as much as digits as its factorization.

2211311121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357113.

The product of its digits is 288, while the sum is 22.

Adding to 2211311121223 its reverse (3221211131122), we get a palindrome (5432522252345).

The spelling of 2211311121223 in words is "two trillion, two hundred eleven billion, three hundred eleven million, one hundred twenty-one thousand, two hundred twenty-three".