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12212121201202 = 2134431255384463
BaseRepresentation
bin1011000110110101101100…
…1001010110101000110010
31121020110121201112121102201
42301231123021112220302
53100040411011414302
641550100535333414
72400203514326356
oct261553311265062
947213551477381
1012212121201202
11398914a05995a
12145295a82126a
136a77a0ccb160
143030d982b466
151629ea5a6c87
hexb1b5b256a32

12212121201202 has 32 divisors (see below), whose sum is σ = 19773612972288. Its totient is φ = 5623125895296.

The previous prime is 12212121201199. The next prime is 12212121201227. The reversal of 12212121201202 is 20210212121221.

12212121201202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12212121201202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144543223 + ... + 144627685.

It is an arithmetic number, because the mean of its divisors is an integer number (617925405384).

Almost surely, 212212121201202 is an apocalyptic number.

12212121201202 is a deficient number, since it is larger than the sum of its proper divisors (7561491771086).

12212121201202 is a wasteful number, since it uses less digits than its factorization.

12212121201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97474.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12212121201202 its reverse (20210212121221), we get a palindrome (32422333322423).

The spelling of 12212121201202 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-one million, two hundred one thousand, two hundred two".

Divisors: 1 2 13 26 443 886 5759 11518 12553 25106 84463 163189 168926 326378 1098019 2196038 5560979 11121958 37417109 72292727 74834218 144585454 486422417 972844834 1060264039 2120528078 13783432507 27566865014 469696969277 939393938554 6106060600601 12212121201202