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12100212011 = 531759129793
BaseRepresentation
bin10110100010011101…
…01001010100101011
31011020021200110101102
423101032221110223
5144240123241021
65320405312015
7605566051016
oct132116512453
934207613342
1012100212011
11514a288418
12241840560b
1311aab50984
1482b06637d
154ac46800b
hex2d13a952b

12100212011 has 8 divisors (see below), whose sum is σ = 12335621760. Its totient is φ = 11865065472.

The previous prime is 12100211987. The next prime is 12100212023. The reversal of 12100212011 is 11021200121.

12100212011 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 12100212011 - 210 = 12100210987 is a prime.

It is a super-2 number, since 2×121002120112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100211983 and 12100212001.

It is not an unprimeable number, because it can be changed into a prime (12100212031) 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, 28331 + ... + 158123.

It is an arithmetic number, because the mean of its divisors is an integer number (1541952720).

Almost surely, 212100212011 is an apocalyptic number.

12100212011 is a deficient number, since it is larger than the sum of its proper divisors (235409749).

12100212011 is a wasteful number, since it uses less digits than its factorization.

12100212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131605.

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

Adding to 12100212011 its reverse (11021200121), we get a palindrome (23121412132).

The spelling of 12100212011 in words is "twelve billion, one hundred million, two hundred twelve thousand, eleven".

Divisors: 1 53 1759 93227 129793 6879029 228305887 12100212011