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1212011200330 = 257172617138917
BaseRepresentation
bin10001101000110001011…
…111110011111101001010
311021212102010220022021221
4101220301133303331022
5124324144331402310
62324442410152254
7153364524135550
oct21506137637512
94255363808257
101212011200330
114280137a8737
12176a9012268a
138a3a4b71538
144293981dbd0
15217d941eada
hex11a317f3f4a

1212011200330 has 64 divisors (see below), whose sum is σ = 2640112434432. Its totient is φ = 391077780480.

The previous prime is 1212011200327. The next prime is 1212011200373. The reversal of 1212011200330 is 330021102121.

It is a super-2 number, since 2×12120112003302 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31124032 + ... + 31162948.

It is an arithmetic number, because the mean of its divisors is an integer number (41251756788).

Almost surely, 21212011200330 is an apocalyptic number.

1212011200330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212011200330 is an abundant number, since it is smaller than the sum of its proper divisors (1428101234102).

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

1212011200330 is a wasteful number, since it uses less digits than its factorization.

1212011200330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65119.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1212011200330 its reverse (330021102121), we get a palindrome (1542032302451).

The spelling of 1212011200330 in words is "one trillion, two hundred twelve billion, eleven million, two hundred thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 26171 38917 52342 77834 130855 183197 194585 261710 272419 366394 389170 444907 544838 661589 889814 915985 1323178 1362095 1831970 2224535 2724190 3114349 3307945 4449070 4631123 6228698 6615890 9262246 15571745 23155615 31143490 46311230 1018496807 2036993614 5092484035 7129477649 10184968070 14258955298 17314445719 34628891438 35647388245 71294776490 86572228595 121201120033 173144457190 242402240066 606005600165 1212011200330