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12102112001 = 73089559687
BaseRepresentation
bin10110100010101011…
…11001001100000001
31011020102020222200102
423101111321030001
5144241120041001
65320514132145
7605621153240
oct132125711401
934212228612
1012102112001
115150365961
122418b81055
1311ab367725
1482b3dc957
154ac6e0e6b
hex2d1579301

12102112001 has 8 divisors (see below), whose sum is σ = 13835487360. Its totient is φ = 10369862208.

The previous prime is 12102111971. The next prime is 12102112021. The reversal of 12102112001 is 10021120121.

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 12102112001 - 26 = 12102111937 is a prime.

It is a super-2 number, since 2×121021120012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12102112021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258221 + ... + 301466.

It is an arithmetic number, because the mean of its divisors is an integer number (1729435920).

Almost surely, 212102112001 is an apocalyptic number.

It is an amenable number.

12102112001 is a deficient number, since it is larger than the sum of its proper divisors (1733375359).

12102112001 is an equidigital number, since it uses as much as digits as its factorization.

12102112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562783.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12102112001 its reverse (10021120121), we get a palindrome (22123232122).

The spelling of 12102112001 in words is "twelve billion, one hundred two million, one hundred twelve thousand, one".

Divisors: 1 7 3089 21623 559687 3917809 1728873143 12102112001