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12202102011021 = 3139713693235559
BaseRepresentation
bin1011000110010000010111…
…1101001011010010001101
31121012111202110200000022220
42301210011331023102031
53044404401103323041
641541322425325553
72366400314530356
oct261440575132215
947174673600286
1012202102011021
113984978527a9a
121450a233368b9
136a6865352060
14302828d10d2d
15162610ba7d66
hexb1905f4b48d

12202102011021 has 32 divisors (see below), whose sum is σ = 17702963416320. Its totient is φ = 7430999353344.

The previous prime is 12202102011007. The next prime is 12202102011059. The reversal of 12202102011021 is 12011020120221.

It is not a de Polignac number, because 12202102011021 - 222 = 12202097816717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202102011721) 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, 51682840 + ... + 51918398.

It is an arithmetic number, because the mean of its divisors is an integer number (553217606760).

Almost surely, 212202102011021 is an apocalyptic number.

It is an amenable number.

12202102011021 is a deficient number, since it is larger than the sum of its proper divisors (5500861405299).

12202102011021 is a wasteful number, since it uses less digits than its factorization.

12202102011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249365.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12202102011021 its reverse (12011020120221), we get a palindrome (24213122131242).

The spelling of 12202102011021 in words is "twelve trillion, two hundred two billion, one hundred two million, eleven thousand, twenty-one".

Divisors: 1 3 13 39 97 291 1261 3783 13693 41079 178009 235559 534027 706677 1328221 3062267 3984663 9186801 17266873 22849223 51800619 68547669 297039899 891119697 3225509387 9676528161 41931622031 125794866093 312874410539 938623231617 4067367337007 12202102011021