11111100201 has 12 divisors (see below), whose sum is σ = 16116522240. Its totient is φ = 7376405400.

The previous prime is 11111100151. The next prime is 11111100233. The reversal of 11111100201 is 10200111111.

It is not a de Polignac number, because 11111100201 - 2⁶ = 11111100137 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 (11111100251) 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, 2580625 + ... + 2584926.

It is an arithmetic number, because the mean of its divisors is an integer number (1343043520).

Almost surely, 2^11111100201 is an apocalyptic number.

It is an amenable number.

11111100201 is a deficient number, since it is larger than the sum of its proper divisors (5005422039).

11111100201 is a wasteful number, since it uses less digits than its factorization.

11111100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165796 (or 5165793 counting only the distinct ones).

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

Adding to 11111100201 its reverse (10200111111), we get a palindrome (21311211312).

The spelling of 11111100201 in words is "eleven billion, one hundred eleven million, one hundred thousand, two hundred one".