13021221202223 has 12 divisors (see below), whose sum is σ = 14123922632568. Its totient is φ = 11999112409440.

The previous prime is 13021221202201. The next prime is 13021221202259. The reversal of 13021221202223 is 32220212212031.

It is a happy number.

It is not a de Polignac number, because 13021221202223 - 2²⁶ = 13021154093359 is a prime.

It is a super-3 number, since 3×13021221202223³ (a number of 40 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 (13026221202223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65529968 + ... + 65728373.

It is an arithmetic number, because the mean of its divisors is an integer number (1176993552714).

Almost surely, 2^{13021221202223} is an apocalyptic number.

13021221202223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13021221202223 is a deficient number, since it is larger than the sum of its proper divisors (1102701430345).

13021221202223 is a wasteful number, since it uses less digits than its factorization.

13021221202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131258954 (or 131258941 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13021221202223 its reverse (32220212212031), we get a palindrome (45241433414254).

The spelling of 13021221202223 in words is "thirteen trillion, twenty-one billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-three".