12201212011111 has 8 divisors (see below), whose sum is σ = 12622048359120. Its totient is φ = 11780382656448.

The previous prime is 12201212011063. The next prime is 12201212011117. The reversal of 12201212011111 is 11111021210221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12201212011111 - 2¹³ = 12201212002919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201212011117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932600 + ... + 5304466.

It is an arithmetic number, because the mean of its divisors is an integer number (1577756044890).

Almost surely, 2^{12201212011111} is an apocalyptic number.

12201212011111 is a deficient number, since it is larger than the sum of its proper divisors (420836348009).

12201212011111 is a wasteful number, since it uses less digits than its factorization.

12201212011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496673.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12201212011111 its reverse (11111021210221), we get a palindrome (23312233221332).

The spelling of 12201212011111 in words is "twelve trillion, two hundred one billion, two hundred twelve million, eleven thousand, one hundred eleven".