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12212211021070 = 259191478389891
BaseRepresentation
bin1011000110110110000001…
…1111111111010100001110
31121020110211222112221010111
42301231200133333110032
53100041102010133240
641550113504430234
72400205654642024
oct261554037772416
947213758487114
1012212211021070
113989195827955
12145298491837a
136a77b67b90c8
1430310772c714
15162a033ea1ea
hexb1b607ff50e

12212211021070 has 32 divisors (see below), whose sum is σ = 22007632711680. Its totient is φ = 4879184614560.

The previous prime is 12212211021029. The next prime is 12212211021071. The reversal of 12212211021070 is 7012011221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212211021071) 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, 135810825 + ... + 135900715.

It is an arithmetic number, because the mean of its divisors is an integer number (687738522240).

Almost surely, 212212211021070 is an apocalyptic number.

12212211021070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212211021070 is a deficient number, since it is larger than the sum of its proper divisors (9795421690610).

12212211021070 is a wasteful number, since it uses less digits than its factorization.

12212211021070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105600.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 12212211021070 its reverse (7012011221221), we get a palindrome (19224222242291).

The spelling of 12212211021070 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, twenty-one thousand, seventy".

Divisors: 1 2 5 10 919 1838 4595 9190 14783 29566 73915 89891 147830 179782 449455 898910 13585577 27171154 67927885 82609829 135855770 165219658 413049145 826098290 1328858653 2657717306 6644293265 13288586530 1221221102107 2442442204214 6106105510535 12212211021070