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12212000020987 = 1317293188593579
BaseRepresentation
bin1011000110110101001111…
…1011000101100111111011
31121020110022021112000102121
42301231103323011213323
53100040134001132422
641550040530142111
72400200513321314
oct261552373054773
947213267460377
1012212000020987
113989097711418
121452926121937
136a7781b7cca0
143030c76c560b
151629deb1b8c7
hexb1b53ec59fb

12212000020987 has 16 divisors (see below), whose sum is σ = 13972521155040. Its totient is φ = 10573310356992.

The previous prime is 12212000020967. The next prime is 12212000021057. The reversal of 12212000020987 is 78902000021221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12212000020987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212000020967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94232037 + ... + 94361542.

It is an arithmetic number, because the mean of its divisors is an integer number (873282572190).

Almost surely, 212212000020987 is an apocalyptic number.

12212000020987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12212000020987 is a deficient number, since it is larger than the sum of its proper divisors (1760521134053).

12212000020987 is a wasteful number, since it uses less digits than its factorization.

12212000020987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188593902.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 12212000020987 in words is "twelve trillion, two hundred twelve billion, twenty thousand, nine hundred eighty-seven".

Divisors: 1 13 17 221 293 3809 4981 64753 188593579 2451716527 3206090843 41679180959 55257918647 718352942411 939384616999 12212000020987