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12201121030205 = 516831144983911
BaseRepresentation
bin1011000110001100101101…
…1111000010000000111101
31121012102020002210000122002
42301203023133002000331
53044400343440431310
641541041223432045
72366334103402112
oct261431337020075
947172202700562
1012201121030205
113984514814648
1214507aa8b5625
136a673a043a33
14302774914909
151625a49d1da5
hexb18cb7c203d

12201121030205 has 8 divisors (see below), whose sum is σ = 14642215240704. Its totient is φ = 9760316821200.

The previous prime is 12201121030199. The next prime is 12201121030261. The reversal of 12201121030205 is 50203012110221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12201121030205 - 212 = 12201121026109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72407801 + ... + 72576110.

It is an arithmetic number, because the mean of its divisors is an integer number (1830276905088).

Almost surely, 212201121030205 is an apocalyptic number.

It is an amenable number.

12201121030205 is a deficient number, since it is larger than the sum of its proper divisors (2441094210499).

12201121030205 is a wasteful number, since it uses less digits than its factorization.

12201121030205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145000747.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12201121030205 its reverse (50203012110221), we get a palindrome (62404133140426).

The spelling of 12201121030205 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, thirty thousand, two hundred five".

Divisors: 1 5 16831 84155 144983911 724919555 2440224206041 12201121030205