1321223220223 has 8 divisors (see below), whose sum is σ = 1379321935200. Its totient is φ = 1263960458208.

The previous prime is 1321223220211. The next prime is 1321223220299. The reversal of 1321223220223 is 3220223221231.

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 1321223220223 - 2⁹ = 1321223219711 is a prime.

It is a super-3 number, since 3×1321223220223³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321223220203) 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, 208985011 + ... + 208991332.

It is an arithmetic number, because the mean of its divisors is an integer number (172415241900).

Almost surely, 2^{1321223220223} is an apocalyptic number.

1321223220223 is a deficient number, since it is larger than the sum of its proper divisors (58098714977).

1321223220223 is a wasteful number, since it uses less digits than its factorization.

1321223220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417976481.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1321223220223 its reverse (3220223221231), we get a palindrome (4541446441454).

The spelling of 1321223220223 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-three million, two hundred twenty thousand, two hundred twenty-three".