11201001211111 has 16 divisors (see below), whose sum is σ = 12383657167104. Its totient is φ = 10077144271744.

The previous prime is 11201001211093. The next prime is 11201001211133. The reversal of 11201001211111 is 11111210010211.

It is a cyclic number.

It is not a de Polignac number, because 11201001211111 - 2⁵ = 11201001211079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201001211091 and 11201001211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201001211181) 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, 8809321 + ... + 10000306.

It is an arithmetic number, because the mean of its divisors is an integer number (773978572944).

Almost surely, 2^{11201001211111} is an apocalyptic number.

11201001211111 is a deficient number, since it is larger than the sum of its proper divisors (1182655955993).

11201001211111 is a wasteful number, since it uses less digits than its factorization.

11201001211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18811190.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11201001211111 its reverse (11111210010211), we get a palindrome (22312211221322).

The spelling of 11201001211111 in words is "eleven trillion, two hundred one billion, one million, two hundred eleven thousand, one hundred eleven".