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11212012110012 = 2237400633331661
BaseRepresentation
bin1010001100100111111111…
…1111111100000010111100
31110200212011101211202222020
42203021333333330002330
52432144200100010022
635502421030520140
72235020053322250
oct243117777740274
943625141752866
1011212012110012
113632a955a315a
121310b68206050
13634399257b1c
142aa942b08260
151469b449235c
hexa327fffc0bc

11212012110012 has 48 divisors (see below), whose sum is σ = 29899454226432. Its totient is φ = 3203351110080.

The previous prime is 11212012110007. The next prime is 11212012110083. The reversal of 11212012110012 is 21001121021211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11212012109973 and 11212012110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699462 + ... + 5031122.

It is an arithmetic number, because the mean of its divisors is an integer number (622905296384).

Almost surely, 211212012110012 is an apocalyptic number.

11212012110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212012110012 is an abundant number, since it is smaller than the sum of its proper divisors (18687442116420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212012110012 is a wasteful number, since it uses less digits than its factorization.

11212012110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371738 (or 3371736 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212012110012 its reverse (21001121021211), we get a palindrome (32213133131223).

The spelling of 11212012110012 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred ten thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 40063 80126 120189 160252 240378 280441 480756 560882 841323 1121764 1682646 3331661 3365292 6663322 9994983 13326644 19989966 23321627 39979932 46643254 69964881 93286508 139929762 279859524 133476334643 266952669286 400429003929 533905338572 800858007858 934334342501 1601716015716 1868668685002 2803003027503 3737337370004 5606006055006 11212012110012