2011220013 has 24 divisors (see below), whose sum is σ = 2951936064. Its totient is φ = 1217117440.

The previous prime is 2011220011. The next prime is 2011220023. The reversal of 2011220013 is 3100221102.

It is not a de Polignac number, because 2011220013 - 2¹ = 2011220011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011220011) 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, 265981 + ... + 273437.

It is an arithmetic number, because the mean of its divisors is an integer number (122997336).

Almost surely, 2^2011220013 is an apocalyptic number.

It is an amenable number.

2011220013 is a deficient number, since it is larger than the sum of its proper divisors (940716051).

2011220013 is a wasteful number, since it uses less digits than its factorization.

2011220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225 (or 8214 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2011220013 is about 44846.6276658569. The cubic root of 2011220013 is about 1262.2727128402.

Adding to 2011220013 its reverse (3100221102), we get a palindrome (5111441115).

The spelling of 2011220013 in words is "two billion, eleven million, two hundred twenty thousand, thirteen".