201112201211 has 4 divisors (see below), whose sum is σ = 212942330712. Its totient is φ = 189282071712.

The previous prime is 201112201207. The next prime is 201112201223. The reversal of 201112201211 is 112102211102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201112201211 - 2² = 201112201207 is a prime.

It is a super-2 number, since 2×201112201211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201112201201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5915064725 + ... + 5915064758.

It is an arithmetic number, because the mean of its divisors is an integer number (53235582678).

Almost surely, 2^201112201211 is an apocalyptic number.

201112201211 is a deficient number, since it is larger than the sum of its proper divisors (11830129501).

201112201211 is a wasteful number, since it uses less digits than its factorization.

201112201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830129500.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201112201211 its reverse (112102211102), we get a palindrome (313214412313).

The spelling of 201112201211 in words is "two hundred one billion, one hundred twelve million, two hundred one thousand, two hundred eleven".