212102202011111 has 8 divisors (see below), whose sum is σ = 212122282572000. Its totient is φ = 212082122062720.

The previous prime is 212102202011093. The next prime is 212102202011207. The reversal of 212102202011111 is 111110202201212.

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 212102202011111 - 2¹⁸ = 212102201748967 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 212102202011111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102202011611) 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, 968530835 + ... + 968749803.

It is an arithmetic number, because the mean of its divisors is an integer number (26515285321500).

Almost surely, 2^{212102202011111} is an apocalyptic number.

212102202011111 is a deficient number, since it is larger than the sum of its proper divisors (20080560889).

212102202011111 is a wasteful number, since it uses less digits than its factorization.

212102202011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306249.

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

Adding to 212102202011111 its reverse (111110202201212), we get a palindrome (323212404212323).

The spelling of 212102202011111 in words is "two hundred twelve trillion, one hundred two billion, two hundred two million, eleven thousand, one hundred eleven".