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2223121301 = 2250198801
BaseRepresentation
bin1000010010000010…
…0010001110010101
312201221012021002222
42010200202032111
514023104340201
61004333112125
7106043135132
oct20440421625
95657167088
102223121301
11a40991a35
12520628645
132957686bb
14171379589
15d028791b
hex84822395

2223121301 has 4 divisors (see below), whose sum is σ = 2223242604. Its totient is φ = 2223000000.

The previous prime is 2223121279. The next prime is 2223121333. The reversal of 2223121301 is 1031213222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2086114276 + 137007025 = 45674^2 + 11705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223121301 - 230 = 1149379477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2223121301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26900 + ... + 71901.

It is an arithmetic number, because the mean of its divisors is an integer number (555810651).

Almost surely, 22223121301 is an apocalyptic number.

It is an amenable number.

2223121301 is a deficient number, since it is larger than the sum of its proper divisors (121303).

2223121301 is an equidigital number, since it uses as much as digits as its factorization.

2223121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121302.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2223121301 is about 47149.9872852581. The cubic root of 2223121301 is about 1305.1318453815.

Adding to 2223121301 its reverse (1031213222), we get a palindrome (3254334523).

The spelling of 2223121301 in words is "two billion, two hundred twenty-three million, one hundred twenty-one thousand, three hundred one".

Divisors: 1 22501 98801 2223121301