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12212023211197 = 171137618353637
BaseRepresentation
bin1011000110110101010101…
…0011100011010010111101
31121020110100220011012102021
42301231111103203102331
53100040210420224242
641550043115200141
72400201214405255
oct261552523432275
947213326135367
1012212023211197
1139890a9810587
121452931a46051
136a778690c4c4
143030ca800965
151629e1b9cb67
hexb1b554e34bd

12212023211197 has 16 divisors (see below), whose sum is σ = 13061948864112. Its totient is φ = 11376983941120.

The previous prime is 12212023211161. The next prime is 12212023211207. The reversal of 12212023211197 is 79111232021221.

It can be written as a sum of positive squares in 8 ways, for example, as 4981404392836 + 7230618818361 = 2231906^2 + 2688981^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212023211197 - 211 = 12212023209149 is a prime.

It is a super-3 number, since 3×122120232111973 (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212023221197) 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, 2714938 + ... + 5638699.

It is an arithmetic number, because the mean of its divisors is an integer number (816371804007).

Almost surely, 212212023211197 is an apocalyptic number.

12212023211197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12212023211197 is a deficient number, since it is larger than the sum of its proper divisors (849925652915).

12212023211197 is a wasteful number, since it uses less digits than its factorization.

12212023211197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8354528.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 12212023211197 in words is "twelve trillion, two hundred twelve billion, twenty-three million, two hundred eleven thousand, one hundred ninety-seven".

Divisors: 1 17 113 761 1921 12937 85993 1461881 8353637 142011829 943960981 6357117757 16047336677 108071001869 718354306541 12212023211197