12201310111 has 4 divisors (see below), whose sum is σ = 12205064152. Its totient is φ = 12197556072.

The previous prime is 12201310073. The next prime is 12201310117. The reversal of 12201310111 is 11101310221.

It is a happy number.

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 12201310111 - 2⁹ = 12201309599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201310091 and 12201310100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201310117) 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, 1872141 + ... + 1878646.

It is an arithmetic number, because the mean of its divisors is an integer number (3051266038).

Almost surely, 2^12201310111 is an apocalyptic number.

12201310111 is a deficient number, since it is larger than the sum of its proper divisors (3754041).

12201310111 is an equidigital number, since it uses as much as digits as its factorization.

12201310111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754040.

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

Adding to 12201310111 its reverse (11101310221), we get a palindrome (23302620332).

The spelling of 12201310111 in words is "twelve billion, two hundred one million, three hundred ten thousand, one hundred eleven".