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12121414222 = 2173143267451
BaseRepresentation
bin10110100100111111…
…00001101001001110
31011021202120122100111
423102133201221032
5144311040223342
65322443550234
7606244215031
oct132237415116
934252518314
1012121414222
115160249a05
12242352b37a
1311b2365368
1482dbc5018
154ae255217
hex2d27e1a4e

12121414222 has 32 divisors (see below), whose sum is σ = 20334910464. Its totient is φ = 5391792000.

The previous prime is 12121414213. The next prime is 12121414223. The reversal of 12121414222 is 22241412121.

It is a junction number, because it is equal to n+sod(n) for n = 12121414193 and 12121414202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121414223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88404 + ... + 179047.

It is an arithmetic number, because the mean of its divisors is an integer number (635465952).

Almost surely, 212121414222 is an apocalyptic number.

12121414222 is a deficient number, since it is larger than the sum of its proper divisors (8213496242).

12121414222 is a wasteful number, since it uses less digits than its factorization.

12121414222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267544.

The product of its digits is 512, while the sum is 22.

Adding to 12121414222 its reverse (22241412121), we get a palindrome (34362826343).

The spelling of 12121414222 in words is "twelve billion, one hundred twenty-one million, four hundred fourteen thousand, two hundred twenty-two".

Divisors: 1 2 17 31 34 43 62 86 527 731 1054 1333 1462 2666 22661 45322 267451 534902 4546667 8290981 9093334 11500393 16581962 23000786 140946677 195506681 281893354 356512183 391013362 713024366 6060707111 12121414222