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11221230013 = 75342171843
BaseRepresentation
bin10100111001101011…
…00110000110111101
31001222000201112202121
422130311212012331
5140440113330023
65053245522541
7545033611210
oct123465460675
931860645677
1011221230013
114839101214
122211b73451
13109aa05b96
1478641b777
1545a1ddd5d
hex29cd661bd

11221230013 has 16 divisors (see below), whose sum is σ = 13097448576. Its totient is φ = 9414175680.

The previous prime is 11221229989. The next prime is 11221230029. The reversal of 11221230013 is 31003212211.

It is not a de Polignac number, because 11221230013 - 233 = 2631295421 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 (11221233013) 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 15 ways as a sum of consecutive naturals, for example, 120270 + ... + 192112.

It is an arithmetic number, because the mean of its divisors is an integer number (818590536).

Almost surely, 211221230013 is an apocalyptic number.

It is an amenable number.

11221230013 is a deficient number, since it is larger than the sum of its proper divisors (1876218563).

11221230013 is an equidigital number, since it uses as much as digits as its factorization.

11221230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72324.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11221230013 its reverse (31003212211), we get a palindrome (42224442224).

The spelling of 11221230013 in words is "eleven billion, two hundred twenty-one million, two hundred thirty thousand, thirteen".

Divisors: 1 7 53 371 421 2947 22313 71843 156191 502901 3807679 26653753 30245903 211721321 1603032859 11221230013