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1012210212012 = 223123479683119
BaseRepresentation
bin11101011101011000110…
…11100001110010101100
310120202200200002110111120
432232230123201302230
5113041001303241022
62053000345420540
7133062340561536
oct16565433416254
93522620073446
101012210212012
113603043049aa
1214420b19a750
13745b2b5186c
1436dc3d44856
151b4e36abd5c
hexebac6e1cac

1012210212012 has 24 divisors (see below), whose sum is σ = 2361846412800. Its totient is φ = 337400177616.

The previous prime is 1012210211981. The next prime is 1012210212029. The reversal of 1012210212012 is 2102120122101.

It is a junction number, because it is equal to n+sod(n) for n = 1012210211982 and 1012210212000.

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, 1140189 + ... + 1823307.

It is an arithmetic number, because the mean of its divisors is an integer number (98410267200).

Almost surely, 21012210212012 is an apocalyptic number.

1012210212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012210212012 is an abundant number, since it is smaller than the sum of its proper divisors (1349636200788).

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

1012210212012 is a wasteful number, since it uses less digits than its factorization.

1012210212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806605 (or 806603 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1012210212012 its reverse (2102120122101), we get a palindrome (3114330334113).

The spelling of 1012210212012 in words is "one trillion, twelve billion, two hundred ten million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 123479 246958 370437 493916 683119 740874 1366238 1481748 2049357 2732476 4098714 8197428 84350851001 168701702002 253052553003 337403404004 506105106006 1012210212012