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11112111102212 = 2219375169389723
BaseRepresentation
bin1010000110110011110101…
…1011110101100100000100
31110100022022010110202111022
42201230331123311210010
52424030100420232322
635344500001330312
72224552320630611
oct241547533654404
943308263422438
1011112111102212
1135a469003039a
1212b5727636998
13627b380c8263
142a5b86c95508
151440b8cad942
hexa1b3d6f5904

11112111102212 has 24 divisors (see below), whose sum is σ = 20469785431200. Its totient is φ = 5263604038656.

The previous prime is 11112111102179. The next prime is 11112111102241. The reversal of 11112111102212 is 21220111121111.

11112111102212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111121111022122 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28317983 + ... + 28707705.

It is an arithmetic number, because the mean of its divisors is an integer number (852907726300).

Almost surely, 211112111102212 is an apocalyptic number.

It is an amenable number.

11112111102212 is a deficient number, since it is larger than the sum of its proper divisors (9357674328988).

11112111102212 is a wasteful number, since it uses less digits than its factorization.

11112111102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764915 (or 764913 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11112111102212 its reverse (21220111121111), we get a palindrome (32332222223323).

The spelling of 11112111102212 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 375169 389723 750338 779446 1500676 1558892 7128211 7404737 14256422 14809474 28512844 29618948 146211988187 292423976374 584847952748 2778027775553 5556055551106 11112111102212