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2012211021013 = 3754384081649
BaseRepresentation
bin11101010010000001000…
…111111000010011010101
321010100212110000222201121
4131102001013320103111
5230432002010133023
64140221425323541
7265243315320304
oct35220107702325
97110773028647
102012211021013
11706412732696
12285b914965b1
1311799b3416ab
146d56a51c43b
1537520032d5d
hex1d4811f84d5

2012211021013 has 4 divisors (see below), whose sum is σ = 2066595102700. Its totient is φ = 1957826939328.

The previous prime is 2012211020993. The next prime is 2012211021017. The reversal of 2012211021013 is 3101201122102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1930701913009 + 81509108004 = 1389497^2 + 285498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012211021013 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 (2012211021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27192040788 + ... + 27192040861.

It is an arithmetic number, because the mean of its divisors is an integer number (516648775675).

Almost surely, 22012211021013 is an apocalyptic number.

It is an amenable number.

2012211021013 is a deficient number, since it is larger than the sum of its proper divisors (54384081687).

2012211021013 is an equidigital number, since it uses as much as digits as its factorization.

2012211021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54384081686.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2012211021013 its reverse (3101201122102), we get a palindrome (5113412143115).

The spelling of 2012211021013 in words is "two trillion, twelve billion, two hundred eleven million, twenty-one thousand, thirteen".

Divisors: 1 37 54384081649 2012211021013