2221313221223 has 4 divisors (see below), whose sum is σ = 2232943133568. Its totient is φ = 2209683308880.

The previous prime is 2221313221219. The next prime is 2221313221243. The reversal of 2221313221223 is 3221223131222.

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 2221313221223 - 2² = 2221313221219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221313221192 and 2221313221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221313221243) 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, 5814955886 + ... + 5814956267.

It is an arithmetic number, because the mean of its divisors is an integer number (558235783392).

Almost surely, 2^{2221313221223} is an apocalyptic number.

2221313221223 is a deficient number, since it is larger than the sum of its proper divisors (11629912345).

2221313221223 is a wasteful number, since it uses less digits than its factorization.

2221313221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11629912344.

The product of its digits is 3456, while the sum is 26.

Adding to 2221313221223 its reverse (3221223131222), we get a palindrome (5442536352445).

Subtracting 2221313221223 from its reverse (3221223131222), we obtain a palindrome (999909909999).

The spelling of 2221313221223 in words is "two trillion, two hundred twenty-one billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-three".