201111121120011 has 16 divisors (see below), whose sum is σ = 268432469229600. Its totient is φ = 133931965184768.

The previous prime is 201111121120009. The next prime is 201111121120033. The reversal of 201111121120011 is 110021121111102.

It is a cyclic number.

It is not a de Polignac number, because 201111121120011 - 2¹ = 201111121120009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111121120211) 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, 16232095 + ... + 25801223.

It is an arithmetic number, because the mean of its divisors is an integer number (16777029326850).

Almost surely, 2^{201111121120011} is an apocalyptic number.

201111121120011 is a deficient number, since it is larger than the sum of its proper divisors (67321348109589).

201111121120011 is a wasteful number, since it uses less digits than its factorization.

201111121120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9576558.

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

Adding to 201111121120011 its reverse (110021121111102), we get a palindrome (311132242231113).

The spelling of 201111121120011 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twenty thousand, eleven".