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1212012001002 = 231127457668821
BaseRepresentation
bin10001101000110001100…
…010110111011011101010
311021212102012101222121110
4101220301202313123222
5124324200033013002
62324442435251150
7153364534012065
oct21506142673352
94255365358543
101212012001002
114280141a5250
12176a90449ab6
138a3a5091aca
144293998b8dc
15217d952be6c
hex11a318b76ea

1212012001002 has 32 divisors (see below), whose sum is σ = 2644490084544. Its totient is φ = 367262438400.

The previous prime is 1212012000967. The next prime is 1212012001003. The reversal of 1212012001002 is 2001002102121.

It is not an unprimeable number, because it can be changed into a prime (1212012001003) 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, 1477752 + ... + 2146572.

It is an arithmetic number, because the mean of its divisors is an integer number (82640315142).

Almost surely, 21212012001002 is an apocalyptic number.

1212012001002 is an abundant number, since it is smaller than the sum of its proper divisors (1432478083542).

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

1212012001002 is a wasteful number, since it uses less digits than its factorization.

1212012001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696294.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212012001002 its reverse (2001002102121), we get a palindrome (3213014103123).

The spelling of 1212012001002 in words is "one trillion, two hundred twelve billion, twelve million, one thousand, two".

Divisors: 1 2 3 6 11 22 33 66 27457 54914 82371 164742 302027 604054 668821 906081 1337642 1812162 2006463 4012926 7357031 14714062 22071093 44142186 18363818197 36727636394 55091454591 110182909182 202002000167 404004000334 606006000501 1212012001002