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2012212213 = 112155910667
BaseRepresentation
bin111011111101111…
…1110101111110101
312012020022222020021
41313323332233311
513110111242323
6531400405141
7100602343624
oct16773765765
95166288207
102012212213
11942928900
12481a767b1
13260b61b1b
141513576bb
15bb9c605d
hex77efebf5

2012212213 has 12 divisors (see below), whose sum is σ = 2213396640. Its totient is φ = 1827939080.

The previous prime is 2012212187. The next prime is 2012212229. The reversal of 2012212213 is 3122122102.

It is a happy number.

It is not a de Polignac number, because 2012212213 - 225 = 1978657781 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 (2012212513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183306 + ... + 193972.

It is an arithmetic number, because the mean of its divisors is an integer number (184449720).

Almost surely, 22012212213 is an apocalyptic number.

It is an amenable number.

2012212213 is a deficient number, since it is larger than the sum of its proper divisors (201184427).

2012212213 is a wasteful number, since it uses less digits than its factorization.

2012212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12248 (or 12237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2012212213 is about 44857.6884491388. The cubic root of 2012212213 is about 1262.4802520585.

Adding to 2012212213 its reverse (3122122102), we get a palindrome (5134334315).

The spelling of 2012212213 in words is "two billion, twelve million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 11 121 1559 10667 17149 117337 188639 1290707 16629853 182928383 2012212213