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12002011121212 = 227428643254329
BaseRepresentation
bin1010111010100110111110…
…0111000000011000111100
31120111101021210100122110021
42232221233213000120330
53033120104321334322
641305351531221524
72346055011163450
oct256515747003074
946441253318407
1012002011121212
11390802a427a52
12141a0a12a78a4
13690a2825bc38
142d6c86b30660
1515c2ee77d4c7
hexaea6f9c063c

12002011121212 has 12 divisors (see below), whose sum is σ = 24004022242480. Its totient is φ = 5143719051936.

The previous prime is 12002011121197. The next prime is 12002011121251. The reversal of 12002011121212 is 21212111020021.

12002011121212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214321627137 + ... + 214321627192.

Almost surely, 212002011121212 is an apocalyptic number.

It is an amenable number.

12002011121212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12002011121212 is a wasteful number, since it uses less digits than its factorization.

12002011121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428643254340 (or 428643254338 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12002011121212 its reverse (21212111020021), we get a palindrome (33214122141233).

The spelling of 12002011121212 in words is "twelve trillion, two billion, eleven million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 428643254329 857286508658 1714573017316 3000502780303 6001005560606 12002011121212