201100002201 has 24 divisors (see below), whose sum is σ = 332116659264. Its totient is φ = 114865115040.

The previous prime is 201100002199. The next prime is 201100002209. The reversal of 201100002201 is 102200001102.

It is not a de Polignac number, because 201100002201 - 2¹ = 201100002199 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201100002209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534291 + ... + 829256.

It is an arithmetic number, because the mean of its divisors is an integer number (13838194136).

Almost surely, 2^201100002201 is an apocalyptic number.

201100002201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201100002201 is a deficient number, since it is larger than the sum of its proper divisors (131016657063).

201100002201 is a wasteful number, since it uses less digits than its factorization.

201100002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365901 (or 1365898 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201100002201 its reverse (102200001102), we get a palindrome (303300003303).

The spelling of 201100002201 in words is "two hundred one billion, one hundred million, two thousand, two hundred one".