13111332222121 has 4 divisors (see below), whose sum is σ = 14984379682432. Its totient is φ = 11238284761812.

The previous prime is 13111332222097. The next prime is 13111332222139. The reversal of 13111332222121 is 12122223311131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13111332222121 - 2²⁷ = 13111198004393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111332222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936523730145 + ... + 936523730158.

It is an arithmetic number, because the mean of its divisors is an integer number (3746094920608).

Almost surely, 2^{13111332222121} is an apocalyptic number.

It is an amenable number.

13111332222121 is a deficient number, since it is larger than the sum of its proper divisors (1873047460311).

13111332222121 is an equidigital number, since it uses as much as digits as its factorization.

13111332222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873047460310.

The product of its digits is 864, while the sum is 25.

Adding to 13111332222121 its reverse (12122223311131), we get a palindrome (25233555533252).

The spelling of 13111332222121 in words is "thirteen trillion, one hundred eleven billion, three hundred thirty-two million, two hundred twenty-two thousand, one hundred twenty-one".