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12224230213 = 134297218833
BaseRepresentation
bin10110110001001111…
…01111001101000101
31011112221001020101011
423120213233031011
5200013400331323
65340555402221
7611633146066
oct133047571505
934487036334
1012224230213
1152032940a8
122451a53371
1311ca753820
1483d70a56d
154b82b420d
hex2d89ef345

12224230213 has 8 divisors (see below), whose sum is σ = 13167679448. Its totient is φ = 11281227264.

The previous prime is 12224230181. The next prime is 12224230219. The reversal of 12224230213 is 31203242221.

It can be written as a sum of positive squares in 4 ways, for example, as 230037889 + 11994192324 = 15167^2 + 109518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12224230213 - 25 = 12224230181 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 (12224230219) 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 7 ways as a sum of consecutive naturals, for example, 53556 + ... + 165277.

It is an arithmetic number, because the mean of its divisors is an integer number (1645959931).

Almost surely, 212224230213 is an apocalyptic number.

12224230213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12224230213 is a deficient number, since it is larger than the sum of its proper divisors (943449235).

12224230213 is a wasteful number, since it uses less digits than its factorization.

12224230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223143.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12224230213 its reverse (31203242221), we get a palindrome (43427472434).

The spelling of 12224230213 in words is "twelve billion, two hundred twenty-four million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 13 4297 55861 218833 2844829 940325401 12224230213