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12110200221 = 371921597441
BaseRepresentation
bin10110100011101001…
…01111110110011101
31011020222110220122010
423101310233312131
5144300202401341
65321403341433
7606050001120
oct132164576635
934228426563
1012110200221
11515498a739
12241b821879
1311acc3a062
1482c5063b7
154ad28c716
hex2d1d2fd9d

12110200221 has 24 divisors (see below), whose sum is σ = 19476012864. Its totient is φ = 6555893760.

The previous prime is 12110200213. The next prime is 12110200243. The reversal of 12110200221 is 12200201121.

It is not a de Polignac number, because 12110200221 - 23 = 12110200213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12110200197 and 12110200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110200211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791140 + ... + 806301.

It is an arithmetic number, because the mean of its divisors is an integer number (811500536).

Almost surely, 212110200221 is an apocalyptic number.

It is an amenable number.

12110200221 is a deficient number, since it is larger than the sum of its proper divisors (7365812643).

12110200221 is a wasteful number, since it uses less digits than its factorization.

12110200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597489 (or 1597470 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12110200221 its reverse (12200201121), we get a palindrome (24310401342).

The spelling of 12110200221 in words is "twelve billion, one hundred ten million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 7581 1597441 4792323 11182087 30351379 33546261 91054137 212459653 576676201 637378959 1730028603 4036733407 12110200221