201211200111 has 16 divisors (see below), whose sum is σ = 270390636000. Its totient is φ = 133088339328.

The previous prime is 201211200053. The next prime is 201211200131. The reversal of 201211200111 is 111002112102.

It is not a de Polignac number, because 201211200111 - 2¹¹ = 201211198063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211200131) 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, 135385 + ... + 648653.

It is an arithmetic number, because the mean of its divisors is an integer number (16899414750).

Almost surely, 2^201211200111 is an apocalyptic number.

201211200111 is a deficient number, since it is larger than the sum of its proper divisors (69179435889).

201211200111 is a wasteful number, since it uses less digits than its factorization.

201211200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514298.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201211200111 its reverse (111002112102), we get a palindrome (312213312213).

The spelling of 201211200111 in words is "two hundred one billion, two hundred eleven million, two hundred thousand, one hundred eleven".