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12003201222 = 23237310611123
BaseRepresentation
bin10110010110111001…
…00101000011000110
31010222112010210121020
423023130211003012
5144040304414342
65303022132010
7603310345515
oct131334450306
933875123536
1012003201222
1150aa548811
1223aba21006
131193a1593c
1481c21267c
154a3ba40ec
hex2cb7250c6

12003201222 has 64 divisors (see below), whose sum is σ = 25439878656. Its totient is φ = 3767765760.

The previous prime is 12003201193. The next prime is 12003201229. The reversal of 12003201222 is 22210230021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003201229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10687953 + ... + 10689075.

It is an arithmetic number, because the mean of its divisors is an integer number (397498104).

Almost surely, 212003201222 is an apocalyptic number.

12003201222 is an abundant number, since it is smaller than the sum of its proper divisors (13436677434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12003201222 is a wasteful number, since it uses less digits than its factorization.

12003201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12003201222 its reverse (22210230021), we get a palindrome (34213431243).

The spelling of 12003201222 in words is "twelve billion, three million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 23 46 69 73 138 146 219 438 1061 1123 1679 2122 2246 3183 3358 3369 5037 6366 6738 10074 24403 25829 48806 51658 73209 77453 77487 81979 146418 154906 154974 163958 232359 245937 464718 491874 1191503 1781419 1885517 2383006 3562838 3574509 3771034 5344257 5656551 7149018 10688514 11313102 27404569 54809138 82213707 86979719 164427414 173959438 260939157 521878314 2000533537 4001067074 6001600611 12003201222