11001120201 has 12 divisors (see below), whose sum is σ = 16319980612. Its totient is φ = 7135861536.

The previous prime is 11001120199. The next prime is 11001120203. The reversal of 11001120201 is 10202110011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11001120199) and next prime (11001120203).

It can be written as a sum of positive squares in 2 ways, for example, as 10610030025 + 391090176 = 103005^2 + 19776^2 .

It is not a de Polignac number, because 11001120201 - 2¹ = 11001120199 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001120203) 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, 16517866 + ... + 16518531.

Almost surely, 2^11001120201 is an apocalyptic number.

It is an amenable number.

11001120201 is a deficient number, since it is larger than the sum of its proper divisors (5318860411).

11001120201 is a wasteful number, since it uses less digits than its factorization.

11001120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33036440 (or 33036437 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11001120201 its reverse (10202110011), we get a palindrome (21203230212).

The spelling of 11001120201 in words is "eleven billion, one million, one hundred twenty thousand, two hundred one".