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12110001211 = 711173909091
BaseRepresentation
bin10110100011100111…
…11111010000111011
31011020222002210122101
423101303333100323
5144300130014321
65321355204231
7606045211660
oct132163772073
934228083571
1012110001211
115154864170
12241b746677
1311acb9a5b9
1482c493a67
154ad24d791
hex2d1cff43b

12110001211 has 16 divisors (see below), whose sum is σ = 15185472768. Its totient is φ = 9381808800.

The previous prime is 12110001199. The next prime is 12110001223. The reversal of 12110001211 is 11210001121.

It is an interprime number because it is at equal distance from previous prime (12110001199) and next prime (12110001223).

It is not a de Polignac number, because 12110001211 - 27 = 12110001083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110001251) 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, 441225 + ... + 467866.

It is an arithmetic number, because the mean of its divisors is an integer number (949092048).

Almost surely, 212110001211 is an apocalyptic number.

12110001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110001211 is a deficient number, since it is larger than the sum of its proper divisors (3075471557).

12110001211 is a wasteful number, since it uses less digits than its factorization.

12110001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909282.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12110001211 its reverse (11210001121), we get a palindrome (23320002332).

The spelling of 12110001211 in words is "twelve billion, one hundred ten million, one thousand, two hundred eleven".

Divisors: 1 7 11 77 173 1211 1903 13321 909091 6363637 10000001 70000007 157272743 1100909201 1730000173 12110001211