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1212330132012 = 223311213246281
BaseRepresentation
bin10001101001000100100…
…000011100001000101100
311021220020101000201022110
4101221010200130020230
5124330323003211022
62324534202044020
7153405446044536
oct21510440341054
94256211021273
101212330132012
1142816783283a
12176b5aaa9610
138a425c6a3cc
1442969d20856
152180741d00c
hex11a4481c22c

1212330132012 has 24 divisors (see below), whose sum is σ = 2828862075312. Its totient is φ = 404096934400.

The previous prime is 1212330131983. The next prime is 1212330132103. The reversal of 1212330132012 is 2102310332121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212330132012.

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, 1249689 + ... + 1996592.

It is an arithmetic number, because the mean of its divisors is an integer number (117869253138).

Almost surely, 21212330132012 is an apocalyptic number.

1212330132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212330132012 is an abundant number, since it is smaller than the sum of its proper divisors (1616531943300).

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

1212330132012 is a wasteful number, since it uses less digits than its factorization.

1212330132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277409 (or 3277407 counting only the distinct ones).

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

Adding to 1212330132012 its reverse (2102310332121), we get a palindrome (3314640464133).

The spelling of 1212330132012 in words is "one trillion, two hundred twelve billion, three hundred thirty million, one hundred thirty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 31121 62242 93363 124484 186726 373452 3246281 6492562 9738843 12985124 19477686 38955372 101027511001 202055022002 303082533003 404110044004 606165066006 1212330132012