201111220011 has 12 divisors (see below), whose sum is σ = 290361762168. Its totient is φ = 123760750464.

The previous prime is 201111219983. The next prime is 201111220129. The reversal of 201111220011 is 110022111102.

It is not a de Polignac number, because 201111220011 - 2¹¹ = 201111217963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111220411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198334030 + ... + 198335043.

It is an arithmetic number, because the mean of its divisors is an integer number (24196813514).

Almost surely, 2^201111220011 is an apocalyptic number.

201111220011 is a deficient number, since it is larger than the sum of its proper divisors (89250542157).

201111220011 is a wasteful number, since it uses less digits than its factorization.

201111220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396669102 (or 396669089 counting only the distinct ones).

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

Adding to 201111220011 its reverse (110022111102), we get a palindrome (311133331113).

The spelling of 201111220011 in words is "two hundred one billion, one hundred eleven million, two hundred twenty thousand, eleven".