12201212012111 has 16 divisors (see below), whose sum is σ = 13200601759200. Its totient is φ = 11241802598400.

The previous prime is 12201212012089. The next prime is 12201212012117. The reversal of 12201212012111 is 11121021210221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201212012111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12201212012111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201212012117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59039330 + ... + 59245631.

It is an arithmetic number, because the mean of its divisors is an integer number (825037609950).

Almost surely, 2^{12201212012111} is an apocalyptic number.

12201212012111 is a deficient number, since it is larger than the sum of its proper divisors (999389747089).

12201212012111 is a wasteful number, since it uses less digits than its factorization.

12201212012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118285130.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12201212012111 its reverse (11121021210221), we get a palindrome (23322233222332).

The spelling of 12201212012111 in words is "twelve trillion, two hundred one billion, two hundred twelve million, twelve thousand, one hundred eleven".