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12122012201 = 133373276449
BaseRepresentation
bin10110100101000011…
…10011101000101001
31011021210201000121212
423102201303220221
5144311213342301
65322504442505
7606252255305
oct132241635051
934253630555
1012122012201
115160618202
122423779435
1311b25145b0
1482dcdcd05
154ae3224bb
hex2d2873a29

12122012201 has 8 divisors (see below), whose sum is σ = 13058392200. Its totient is φ = 11186191872.

The previous prime is 12122012159. The next prime is 12122012269. The reversal of 12122012201 is 10221022121.

It can be written as a sum of positive squares in 4 ways, for example, as 1960364176 + 10161648025 = 44276^2 + 100805^2 .

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 12122012201 - 230 = 11048270377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122015201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94376 + ... + 182073.

It is an arithmetic number, because the mean of its divisors is an integer number (1632299025).

Almost surely, 212122012201 is an apocalyptic number.

It is an amenable number.

12122012201 is a deficient number, since it is larger than the sum of its proper divisors (936379999).

12122012201 is a wasteful number, since it uses less digits than its factorization.

12122012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279835.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12122012201 its reverse (10221022121), we get a palindrome (22343034322).

The spelling of 12122012201 in words is "twelve billion, one hundred twenty-two million, twelve thousand, two hundred one".

Divisors: 1 13 3373 43849 276449 3593837 932462477 12122012201