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2200112221 = 5474022143
BaseRepresentation
bin1000001100100011…
…0000110001011101
312200022220021120211
42003020300301131
514001212042341
61002152012421
7105343434226
oct20310606135
95608807524
102200112221
11a299a696a
12514991111
13290a70768
1416c2aa24d
15cd240181
hex83230c5d

2200112221 has 4 divisors (see below), whose sum is σ = 2204134912. Its totient is φ = 2196089532.

The previous prime is 2200112209. The next prime is 2200112227. The reversal of 2200112221 is 1222110022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2200112221 - 219 = 2199587933 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 (2200112227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010525 + ... + 2011618.

It is an arithmetic number, because the mean of its divisors is an integer number (551033728).

Almost surely, 22200112221 is an apocalyptic number.

It is an amenable number.

2200112221 is a deficient number, since it is larger than the sum of its proper divisors (4022691).

2200112221 is an equidigital number, since it uses as much as digits as its factorization.

2200112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022690.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2200112221 is about 46905.3538628588. The cubic root of 2200112221 is about 1300.6135606682.

Adding to 2200112221 its reverse (1222110022), we get a palindrome (3422222243).

The spelling of 2200112221 in words is "two billion, two hundred million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 547 4022143 2200112221