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12102120201 = 38069499943
BaseRepresentation
bin10110100010101011…
…11011001100001001
31011020102021101221010
423101111323030021
5144241120321301
65320514234133
7605621216163
oct132125731411
934212241833
1012102120201
115150371036
122418b85949
1311ab36b392
1482b401933
154ac6e35d6
hex2d157b309

12102120201 has 8 divisors (see below), whose sum is σ = 16138192320. Its totient is φ = 8067064112.

The previous prime is 12102120161. The next prime is 12102120203. The reversal of 12102120201 is 10202120121.

12102120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12102120201 - 210 = 12102119177 is a prime.

It is a super-2 number, since 2×121021202012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225765 + ... + 274178.

It is an arithmetic number, because the mean of its divisors is an integer number (2017274040).

Almost surely, 212102120201 is an apocalyptic number.

It is an amenable number.

12102120201 is a deficient number, since it is larger than the sum of its proper divisors (4036072119).

12102120201 is an equidigital number, since it uses as much as digits as its factorization.

12102120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508015.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12102120201 its reverse (10202120121), we get a palindrome (22304240322).

The spelling of 12102120201 in words is "twelve billion, one hundred two million, one hundred twenty thousand, two hundred one".

Divisors: 1 3 8069 24207 499943 1499829 4034040067 12102120201