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12210302011 = 18616561151
BaseRepresentation
bin10110101111100101…
…00110110000111011
31011111221211121110211
423113302212300323
5200001314131021
65335341051551
7611403566065
oct132762466073
934457747424
1012210302011
1151a6440696
122449256bb7
1311c78b7c9b
1483b922735
154b6e623e1
hex2d7ca6c3b

12210302011 has 4 divisors (see below), whose sum is σ = 12216865024. Its totient is φ = 12203739000.

The previous prime is 12210301997. The next prime is 12210302033. The reversal of 12210302011 is 11020301221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11020301221 = 17648253013.

It is a cyclic number.

It is not a de Polignac number, because 12210302011 - 223 = 12201913403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210301982 and 12210302000.

It is not an unprimeable number, because it can be changed into a prime (12210303011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3278715 + ... + 3282436.

It is an arithmetic number, because the mean of its divisors is an integer number (3054216256).

Almost surely, 212210302011 is an apocalyptic number.

12210302011 is a deficient number, since it is larger than the sum of its proper divisors (6563013).

12210302011 is an equidigital number, since it uses as much as digits as its factorization.

12210302011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563012.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12210302011 its reverse (11020301221), we get a palindrome (23230603232).

The spelling of 12210302011 in words is "twelve billion, two hundred ten million, three hundred two thousand, eleven".

Divisors: 1 1861 6561151 12210302011