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12011210197 = 72213775367
BaseRepresentation
bin10110010111110110…
…01000010111010101
31011000002012200211221
423023323020113111
5144044332211242
65303505530341
7603435413350
oct131373102725
934002180757
1012011210197
115104018aa8
1223b26439b1
13119558b18c
1481d2d9297
154a4737167
hex2cbec85d5

12011210197 has 8 divisors (see below), whose sum is σ = 13733318016. Its totient is φ = 10290657552.

The previous prime is 12011210153. The next prime is 12011210203. The reversal of 12011210197 is 79101211021.

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

It is not a de Polignac number, because 12011210197 - 211 = 12011208149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011210117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372193 + ... + 403174.

It is an arithmetic number, because the mean of its divisors is an integer number (1716664752).

Almost surely, 212011210197 is an apocalyptic number.

It is an amenable number.

12011210197 is a deficient number, since it is larger than the sum of its proper divisors (1722107819).

12011210197 is an equidigital number, since it uses as much as digits as its factorization.

12011210197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777587.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 12011210197 in words is "twelve billion, eleven million, two hundred ten thousand, one hundred ninety-seven".

Divisors: 1 7 2213 15491 775367 5427569 1715887171 12011210197