12101144213 has 4 divisors (see below), whose sum is σ = 12738046560. Its totient is φ = 11464241868.

The previous prime is 12101144207. The next prime is 12101144267. The reversal of 12101144213 is 31244110121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31244110121 = 7 ⋅4463444303.

It is a cyclic number.

It is not a de Polignac number, because 12101144213 - 2¹⁶ = 12101078677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101144513) 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, 318451145 + ... + 318451182.

It is an arithmetic number, because the mean of its divisors is an integer number (3184511640).

Almost surely, 2^12101144213 is an apocalyptic number.

It is an amenable number.

12101144213 is a deficient number, since it is larger than the sum of its proper divisors (636902347).

12101144213 is an equidigital number, since it uses as much as digits as its factorization.

12101144213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636902346.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12101144213 its reverse (31244110121), we get a palindrome (43345254334).

The spelling of 12101144213 in words is "twelve billion, one hundred one million, one hundred forty-four thousand, two hundred thirteen".