13111102203221 has 8 divisors (see below), whose sum is σ = 14303071221600. Its totient is φ = 11919141624240.

The previous prime is 13111102203197. The next prime is 13111102203239. The reversal of 13111102203221 is 12230220111131.

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 13111102203221 - 2³⁴ = 13093922334037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13111102203193 and 13111102203202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111102223221) 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, 1391090 + ... + 5306348.

It is an arithmetic number, because the mean of its divisors is an integer number (1787883902700).

Almost surely, 2^{13111102203221} is an apocalyptic number.

13111102203221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13111102203221 is a deficient number, since it is larger than the sum of its proper divisors (1191969018379).

13111102203221 is a wasteful number, since it uses less digits than its factorization.

13111102203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219699.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13111102203221 its reverse (12230220111131), we get a palindrome (25341322314352).

The spelling of 13111102203221 in words is "thirteen trillion, one hundred eleven billion, one hundred two million, two hundred three thousand, two hundred twenty-one".