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12214012223 = 71744858889
BaseRepresentation
bin10110110000000001…
…10000100100111111
31011112012211002221002
423120000300210333
5200003241342343
65335552400515
7611450251040
oct133000604477
934465732832
1012214012223
1151a8545186
12244a54613b
1311c85b698a
1483c20a8c7
154b74468b8
hex2d803093f

12214012223 has 4 divisors (see below), whose sum is σ = 13958871120. Its totient is φ = 10469153328.

The previous prime is 12214012199. The next prime is 12214012259. The reversal of 12214012223 is 32221041221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12214012223 - 28 = 12214011967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12214012195 and 12214012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214015223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872429438 + ... + 872429451.

It is an arithmetic number, because the mean of its divisors is an integer number (3489717780).

Almost surely, 212214012223 is an apocalyptic number.

12214012223 is a deficient number, since it is larger than the sum of its proper divisors (1744858897).

12214012223 is an equidigital number, since it uses as much as digits as its factorization.

12214012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744858896.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12214012223 its reverse (32221041221), we get a palindrome (44435053444).

The spelling of 12214012223 in words is "twelve billion, two hundred fourteen million, twelve thousand, two hundred twenty-three".

Divisors: 1 7 1744858889 12214012223