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1212133230012 = 223432349095407
BaseRepresentation
bin10001101000111000110…
…001010100010110111100
311021212201122112001112210
4101220320301110112330
5124324422101330022
62324502445500420
7153400535312325
oct21507061242674
94255648461483
101212133230012
11428076676411
12176b04b71710
138a3c4229253
144294bb0744c
15217e4ec6a0c
hex11a38c545bc

1212133230012 has 24 divisors (see below), whose sum is σ = 2894085542656. Its totient is φ = 394648028208.

The previous prime is 1212133229971. The next prime is 1212133230071. The reversal of 1212133230012 is 2100323312121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174547188 + ... + 1174548219.

Almost surely, 21212133230012 is an apocalyptic number.

1212133230012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212133230012 is an abundant number, since it is smaller than the sum of its proper divisors (1681952312644).

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

1212133230012 is a wasteful number, since it uses less digits than its factorization.

1212133230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349095457 (or 2349095455 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1212133230012 its reverse (2100323312121), we get a palindrome (3312456542133).

The spelling of 1212133230012 in words is "one trillion, two hundred twelve billion, one hundred thirty-three million, two hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 2349095407 4698190814 7047286221 9396381628 14094572442 28189144884 101011102501 202022205002 303033307503 404044410004 606066615006 1212133230012