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1203211010012 = 2211172955467961
BaseRepresentation
bin10001100000100100111…
…101101111111111011100
311021000200211210022122012
4101200210331233333130
5124203134004310022
62320425243410352
7152633455560164
oct21404475577734
94230624708565
101203211010012
1142430827a480
12175234b239b8
138960190ca2b
1442342b7b5a4
1521471a60de2
hex11824f6ffdc

1203211010012 has 48 divisors (see below), whose sum is σ = 2516026756320. Its totient is φ = 496992921600.

The previous prime is 1203211010011. The next prime is 1203211010017. The reversal of 1203211010012 is 2100101123021.

It is a super-2 number, since 2×12032110100122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203211010011) 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, 27712289 + ... + 27755672.

It is an arithmetic number, because the mean of its divisors is an integer number (52417224090).

Almost surely, 21203211010012 is an apocalyptic number.

It is an amenable number.

1203211010012 is an abundant number, since it is smaller than the sum of its proper divisors (1312815746308).

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

1203211010012 is a wasteful number, since it uses less digits than its factorization.

1203211010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55468022 (or 55468020 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1203211010012 its reverse (2100101123021), we get a palindrome (3303312133033).

The spelling of 1203211010012 in words is "one trillion, two hundred three billion, two hundred eleven million, ten thousand, twelve".

Divisors: 1 2 4 11 17 22 29 34 44 58 68 116 187 319 374 493 638 748 986 1276 1972 5423 10846 21692 55467961 110935922 221871844 610147571 942955337 1220295142 1608570869 1885910674 2440590284 3217141738 3771821348 6434283476 10372508707 17694279559 20745017414 27345704773 35388559118 41490034828 54691409546 70777118236 109382819092 300802752503 601605505006 1203211010012