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11121112210111 = 1719417111827787
BaseRepresentation
bin1010000111010101010111…
…1100010101101010111111
31110101011112102122102020221
42201311111330111222333
52424202014211210421
635352545102322211
72225321346034651
oct241652574255277
943334472572227
1011121112210111
1135a8489a08a42
1212b7419b89367
13628940b758c7
142a639c4b86d1
15144444108841
hexa1d55f15abf

11121112210111 has 32 divisors (see below), whose sum is σ = 12876203128320. Its totient is φ = 9537926630400.

The previous prime is 11121112210079. The next prime is 11121112210121. The reversal of 11121112210111 is 11101221112111.

It is a cyclic number.

It is not a de Polignac number, because 11121112210111 - 25 = 11121112210079 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 (11121112210121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4973641 + ... + 6854146.

It is an arithmetic number, because the mean of its divisors is an integer number (402381347760).

Almost surely, 211121112210111 is an apocalyptic number.

11121112210111 is a deficient number, since it is larger than the sum of its proper divisors (1755090918209).

11121112210111 is a wasteful number, since it uses less digits than its factorization.

11121112210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827935.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11121112210111 its reverse (11101221112111), we get a palindrome (22222333322222).

The spelling of 11121112210111 in words is "eleven trillion, one hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, one hundred eleven".

Divisors: 1 17 19 41 71 323 697 779 1207 1349 2911 13243 22933 49487 55309 940253 11827787 201072379 224727953 484939267 839772877 3820375201 8243967539 9213846073 14276138909 15955684663 34430687957 156635383241 271246639271 585321695269 654183071183 11121112210111