12201013111 has 4 divisors (see below), whose sum is σ = 13944014992. Its totient is φ = 10458011232.

The previous prime is 12201013093. The next prime is 12201013117. The reversal of 12201013111 is 11131010221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11131010221 = 27943 ⋅398347.

It is a cyclic number.

It is not a de Polignac number, because 12201013111 - 2¹⁹ = 12200488823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201013091 and 12201013100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201013117) 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, 871500930 + ... + 871500943.

It is an arithmetic number, because the mean of its divisors is an integer number (3486003748).

Almost surely, 2^12201013111 is an apocalyptic number.

12201013111 is a deficient number, since it is larger than the sum of its proper divisors (1743001881).

12201013111 is an equidigital number, since it uses as much as digits as its factorization.

12201013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743001880.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12201013111 its reverse (11131010221), we get a palindrome (23332023332).

The spelling of 12201013111 in words is "twelve billion, two hundred one million, thirteen thousand, one hundred eleven".