13221202223123 has 4 divisors (see below), whose sum is σ = 13221230282808. Its totient is φ = 13221174163440.

The previous prime is 13221202223113. The next prime is 13221202223129. The reversal of 13221202223123 is 32132220212231.

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 13221202223123 - 2²⁴ = 13221185445907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221202223092 and 13221202223101.

It is not an unprimeable number, because it can be changed into a prime (13221202223129) 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, 13310786 + ... + 14269527.

It is an arithmetic number, because the mean of its divisors is an integer number (3305307570702).

Almost surely, 2^{13221202223123} is an apocalyptic number.

13221202223123 is a deficient number, since it is larger than the sum of its proper divisors (28059685).

13221202223123 is an equidigital number, since it uses as much as digits as its factorization.

13221202223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28059684.

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

Adding to 13221202223123 its reverse (32132220212231), we get a palindrome (45353422435354).

The spelling of 13221202223123 in words is "thirteen trillion, two hundred twenty-one billion, two hundred two million, two hundred twenty-three thousand, one hundred twenty-three".