11155002201 has 48 divisors (see below), whose sum is σ = 19536691200. Its totient is φ = 5991166944.

The previous prime is 11155002181. The next prime is 11155002253. The reversal of 11155002201 is 10220055111.

11155002201 is a `hidden beast` number, since 111 + 550 + 0 + 2 + 2 + 0 + 1 = 666.

It is not a de Polignac number, because 11155002201 - 2²³ = 11146613593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11155002281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115330 + ... + 188708.

It is an arithmetic number, because the mean of its divisors is an integer number (407014400).

Almost surely, 2^11155002201 is an apocalyptic number.

It is an amenable number.

11155002201 is a deficient number, since it is larger than the sum of its proper divisors (8381688999).

11155002201 is a wasteful number, since it uses less digits than its factorization.

11155002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73538 (or 73535 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 11155002201 its reverse (10220055111), we get a palindrome (21375057312).

The spelling of 11155002201 in words is "eleven billion, one hundred fifty-five million, two thousand, two hundred one".