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2122122212012 = 2211317173387793
BaseRepresentation
bin11110111000011000010…
…101110011001010101100
321111212120100100000001102
4132320120111303022230
5234232101241241022
64302520043502232
7306214111115345
oct36703025631254
97455510300042
102122122212012
11748a94735230
122a3346527978
1312516631579a
14749d59c50cc
153a304436a92
hex1ee185732ac

2122122212012 has 48 divisors (see below), whose sum is σ = 4066495870752. Its totient is φ = 960992302080.

The previous prime is 2122122212011. The next prime is 2122122212027. The reversal of 2122122212012 is 2102122212212.

It is not an unprimeable number, because it can be changed into a prime (2122122212011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24127988 + ... + 24215780.

It is an arithmetic number, because the mean of its divisors is an integer number (84718663974).

Almost surely, 22122122212012 is an apocalyptic number.

2122122212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2122122212012 is a deficient number, since it is larger than the sum of its proper divisors (1944373658740).

2122122212012 is a wasteful number, since it uses less digits than its factorization.

2122122212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89858 (or 89856 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122122212012 its reverse (2102122212212), we get a palindrome (4224244424224).

The spelling of 2122122212012 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 11 22 44 317 634 1268 1733 3466 3487 6932 6974 13948 19063 38126 76252 87793 175586 351172 549361 965723 1098722 1931446 2197444 3862892 6042971 12085942 24171884 27830381 55660762 111321524 152145269 304290538 306134191 608581076 612268382 1224536764 1673597959 3347195918 6694391836 48230050273 96460100546 192920201092 530530553003 1061061106006 2122122212012