2113221223 has 4 divisors (see below), whose sum is σ = 2114471128. Its totient is φ = 2111971320.

The previous prime is 2113221203. The next prime is 2113221239. The reversal of 2113221223 is 3221223112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113221223 - 2¹⁷ = 2113090151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113221203) 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, 622413 + ... + 625798.

It is an arithmetic number, because the mean of its divisors is an integer number (528617782).

Almost surely, 2^2113221223 is an apocalyptic number.

2113221223 is a deficient number, since it is larger than the sum of its proper divisors (1249905).

2113221223 is a wasteful number, since it uses less digits than its factorization.

2113221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249904.

The product of its digits is 288, while the sum is 19.

The square root of 2113221223 is about 45969.7859794887. The cubic root of 2113221223 is about 1283.2609769441.

Adding to 2113221223 its reverse (3221223112), we get a palindrome (5334444335).

The spelling of 2113221223 in words is "two billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-three".