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12100122011 = 171051677233
BaseRepresentation
bin10110100010011100…
…10011010110011011
31011020021111212221002
423101032103112123
5144240112401021
65320403335215
7605565224435
oct132116232633
934207455832
1012100122011
11514a22683a
12241838150b
1311aab1ba13
1482b041655
154ac44b50b
hex2d139359b

12100122011 has 8 divisors (see below), whose sum is σ = 12824103024. Its totient is φ = 11377497600.

The previous prime is 12100121993. The next prime is 12100122053. The reversal of 12100122011 is 11022100121.

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 12100122011 - 218 = 12099859867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100121983 and 12100122001.

It is not an unprimeable number, because it can be changed into a prime (12100122091) 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, 320750 + ... + 356483.

It is an arithmetic number, because the mean of its divisors is an integer number (1603012878).

Almost surely, 212100122011 is an apocalyptic number.

12100122011 is a deficient number, since it is larger than the sum of its proper divisors (723981013).

12100122011 is a wasteful number, since it uses less digits than its factorization.

12100122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678301.

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

Adding to 12100122011 its reverse (11022100121), we get a palindrome (23122222132).

The spelling of 12100122011 in words is "twelve billion, one hundred million, one hundred twenty-two thousand, eleven".

Divisors: 1 17 1051 17867 677233 11512961 711771883 12100122011