11001111201 has 8 divisors (see below), whose sum is σ = 16297942560. Its totient is φ = 7334074116.

The previous prime is 11001111197. The next prime is 11001111203. The reversal of 11001111201 is 10211110011.

It is not a de Polignac number, because 11001111201 - 2² = 11001111197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11001111203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203724255 + ... + 203724308.

It is an arithmetic number, because the mean of its divisors is an integer number (2037242820).

Almost surely, 2^11001111201 is an apocalyptic number.

It is an amenable number.

11001111201 is a deficient number, since it is larger than the sum of its proper divisors (5296831359).

11001111201 is an equidigital number, since it uses as much as digits as its factorization.

11001111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407448572 (or 407448566 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11001111201 its reverse (10211110011), we get a palindrome (21212221212).

The spelling of 11001111201 in words is "eleven billion, one million, one hundred eleven thousand, two hundred one".