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2012102210111 = 7287443172873
BaseRepresentation
bin11101010001111010101…
…000110011001000111111
321010100120212021211020012
4131101322220303020333
5230431241131210421
64140202541213435
7265240524410330
oct35217250631077
97110525254205
102012102210111
11706367273424
12285b60b6127b
13117981934646
146d559cb6287
15375156dc95b
hex1d47aa3323f

2012102210111 has 4 divisors (see below), whose sum is σ = 2299545382992. Its totient is φ = 1724659037232.

The previous prime is 2012102210077. The next prime is 2012102210159. The reversal of 2012102210111 is 1110122012102.

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 2012102210111 - 230 = 2011028468287 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 (2012102210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143721586430 + ... + 143721586443.

It is an arithmetic number, because the mean of its divisors is an integer number (574886345748).

Almost surely, 22012102210111 is an apocalyptic number.

2012102210111 is a deficient number, since it is larger than the sum of its proper divisors (287443172881).

2012102210111 is an equidigital number, since it uses as much as digits as its factorization.

2012102210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287443172880.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2012102210111 its reverse (1110122012102), we get a palindrome (3122224222213).

The spelling of 2012102210111 in words is "two trillion, twelve billion, one hundred two million, two hundred ten thousand, one hundred eleven".

Divisors: 1 7 287443172873 2012102210111