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12201202111 = 72017864169
BaseRepresentation
bin10110101110011111…
…11001000110111111
31011111022201021202111
423113033321012333
5144442001431421
65334414034451
7611233335550
oct132717710677
934438637674
1012201202111
1151a129580a
1224461a8a27
1311c5a50027
1483a634327
154b6265ee1
hex2d73f91bf

12201202111 has 8 divisors (see below), whose sum is σ = 13951160480. Its totient is φ = 10452976128.

The previous prime is 12201202063. The next prime is 12201202157. The reversal of 12201202111 is 11120210221.

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

It is not a de Polignac number, because 12201202111 - 27 = 12201201983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201202091 and 12201202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201202171) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 417966 + ... + 446203.

It is an arithmetic number, because the mean of its divisors is an integer number (1743895060).

Almost surely, 212201202111 is an apocalyptic number.

12201202111 is a deficient number, since it is larger than the sum of its proper divisors (1749958369).

12201202111 is an equidigital number, since it uses as much as digits as its factorization.

12201202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866193.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201202111 its reverse (11120210221), we get a palindrome (23321412332).

The spelling of 12201202111 in words is "twelve billion, two hundred one million, two hundred two thousand, one hundred eleven".

Divisors: 1 7 2017 14119 864169 6049183 1743028873 12201202111