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2221111013 = 111769117189
BaseRepresentation
bin1000010001100011…
…0111011011100101
312201210102010111212
42010120313123211
514022101023023
61004222041205
7106020063212
oct20430673345
95653363455
102221111013
11a3a839640
1251ba19205
13295213694
14170db4b09
15ceedbe78
hex846376e5

2221111013 has 16 divisors (see below), whose sum is σ = 2569423680. Its totient is φ = 1897555200.

The previous prime is 2221110973. The next prime is 2221111019. The reversal of 2221111013 is 3101111222.

2221111013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2221111013 - 212 = 2221106917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120623 + ... + 137811.

It is an arithmetic number, because the mean of its divisors is an integer number (160588980).

Almost surely, 22221111013 is an apocalyptic number.

It is an amenable number.

2221111013 is a deficient number, since it is larger than the sum of its proper divisors (348312667).

2221111013 is a wasteful number, since it uses less digits than its factorization.

2221111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17908.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2221111013 is about 47128.6644516901. The cubic root of 2221111013 is about 1304.7383322730.

Adding to 2221111013 its reverse (3101111222), we get a palindrome (5322222235).

The spelling of 2221111013 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, thirteen".

Divisors: 1 11 17 187 691 7601 11747 17189 129217 189079 292213 3214343 11877599 130653589 201919183 2221111013