2011220201 has 8 divisors (see below), whose sum is σ = 2078289408. Its totient is φ = 1946313300.

The previous prime is 2011220179. The next prime is 2011220219. The reversal of 2011220201 is 1020221102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2011220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011220231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3965 + ... + 63546.

It is an arithmetic number, because the mean of its divisors is an integer number (259786176).

Almost surely, 2^2011220201 is an apocalyptic number.

It is an amenable number.

2011220201 is a deficient number, since it is larger than the sum of its proper divisors (67069207).

2011220201 is an frugal number, since it uses more digits than its factorization.

2011220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67604 (or 67542 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2011220201 is about 44846.6297618896. The cubic root of 2011220201 is about 1262.2727521708.

Adding to 2011220201 its reverse (1020221102), we get a palindrome (3031441303).

Subtracting from 2011220201 its reverse (1020221102), we obtain a palindrome (990999099).

The spelling of 2011220201 in words is "two billion, eleven million, two hundred twenty thousand, two hundred one".