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12122120202 = 236133120547
BaseRepresentation
bin10110100101000100…
…01110000000001010
31011021210220111202220
423102202032000022
5144311230321302
65322511034510
7606253215213
oct132242160012
934253814686
1012122120202
115160691365
12242380ba36
1311b25517ba
1482dd2a40a
154ae3444bc
hex2d288e00a

12122120202 has 16 divisors (see below), whose sum is σ = 24641687712. Its totient is φ = 3974465520.

The previous prime is 12122120159. The next prime is 12122120221. The reversal of 12122120202 is 20202122121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16559908 + ... + 16560639.

It is an arithmetic number, because the mean of its divisors is an integer number (1540105482).

Almost surely, 212122120202 is an apocalyptic number.

12122120202 is an abundant number, since it is smaller than the sum of its proper divisors (12519567510).

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

12122120202 is a wasteful number, since it uses less digits than its factorization.

12122120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33120613.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12122120202 its reverse (20202122121), we get a palindrome (32324242323).

The spelling of 12122120202 in words is "twelve billion, one hundred twenty-two million, one hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 61 122 183 366 33120547 66241094 99361641 198723282 2020353367 4040706734 6061060101 12122120202