201111021112011 has 32 divisors (see below), whose sum is σ = 275930099976960. Its totient is φ = 130218186169344.

The previous prime is 201111021112009. The next prime is 201111021112037. The reversal of 201111021112011 is 110211120111102.

It is not a de Polignac number, because 201111021112011 - 2¹ = 201111021112009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111021112051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509490355 + ... + 509884931.

It is an arithmetic number, because the mean of its divisors is an integer number (8622815624280).

Almost surely, 2^{201111021112011} is an apocalyptic number.

201111021112011 is a deficient number, since it is larger than the sum of its proper divisors (74819078864949).

201111021112011 is a wasteful number, since it uses less digits than its factorization.

201111021112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416875.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 201111021112011 its reverse (110211120111102), we get a palindrome (311322141223113).

The spelling of 201111021112011 in words is "two hundred one trillion, one hundred eleven billion, twenty-one million, one hundred twelve thousand, eleven".