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12102212607 = 34034070869
BaseRepresentation
bin10110100010101100…
…10001101111111111
31011020102110002200120
423101112101233333
5144241131300412
65320520230023
7605622052452
oct132126215777
934212402616
1012102212607
115150424501
12241900b313
1311ab3a1464
1482b427499
154ac710b8c
hex2d1591bff

12102212607 has 4 divisors (see below), whose sum is σ = 16136283480. Its totient is φ = 8068141736.

The previous prime is 12102212579. The next prime is 12102212609. The reversal of 12102212607 is 70621220121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12102212607 - 232 = 7807245311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102212609) 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, 2017035432 + ... + 2017035437.

It is an arithmetic number, because the mean of its divisors is an integer number (4034070870).

Almost surely, 212102212607 is an apocalyptic number.

12102212607 is a deficient number, since it is larger than the sum of its proper divisors (4034070873).

12102212607 is an equidigital number, since it uses as much as digits as its factorization.

12102212607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034070872.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 12102212607 its reverse (70621220121), we get a palindrome (82723432728).

The spelling of 12102212607 in words is "twelve billion, one hundred two million, two hundred twelve thousand, six hundred seven".

Divisors: 1 3 4034070869 12102212607