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1212012010212 = 223204707493393
BaseRepresentation
bin10001101000110001100…
…010111001101011100100
311021212102012102110020120
4101220301202321223210
5124324200033311322
62324442435401540
7153364534050663
oct21506142715344
94255365373216
101212012010212
11428014201163
12176a904532b0
138a3a5096063
1442939990dda
15217d952ea5c
hex11a318b9ae4

1212012010212 has 24 divisors (see below), whose sum is σ = 2828047570656. Its totient is φ = 404001211008.

The previous prime is 1212012010171. The next prime is 1212012010291. The reversal of 1212012010212 is 2120102102121.

It is a super-2 number, since 2×12120120102122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212012010191 and 1212012010200.

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, 2209788 + ... + 2703180.

It is an arithmetic number, because the mean of its divisors is an integer number (117835315444).

Almost surely, 21212012010212 is an apocalyptic number.

1212012010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212012010212 is an abundant number, since it is smaller than the sum of its proper divisors (1616035560444).

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

1212012010212 is a wasteful number, since it uses less digits than its factorization.

1212012010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698107 (or 698105 counting only the distinct ones).

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

Adding to 1212012010212 its reverse (2120102102121), we get a palindrome (3332114112333).

The spelling of 1212012010212 in words is "one trillion, two hundred twelve billion, twelve million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 204707 409414 493393 614121 818828 986786 1228242 1480179 1973572 2456484 2960358 5920716 101001000851 202002001702 303003002553 404004003404 606006005106 1212012010212