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13121322212211 = 367480113597211
BaseRepresentation
bin1011111011110000101110…
…1111111101101101110011
31201110101102111122110221120
42332330023233331231303
53204434431441242321
643523504024353323
72522661411366033
oct276741357755563
951411374573846
1013121322212211
1141a97a3353484
12157b000315843
13742448a86a75
1433510abd18c3
1517b4b0768ec6
hexbef0bbfdb73

13121322212211 has 16 divisors (see below), whose sum is σ = 17759916870528. Its totient is φ = 8615192256000.

The previous prime is 13121322212149. The next prime is 13121322212221. The reversal of 13121322212211 is 11221222312131.

It is not a de Polignac number, because 13121322212211 - 27 = 13121322212083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121322212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5833605 + ... + 7763606.

It is an arithmetic number, because the mean of its divisors is an integer number (1109994804408).

Almost surely, 213121322212211 is an apocalyptic number.

13121322212211 is a deficient number, since it is larger than the sum of its proper divisors (4638594658317).

13121322212211 is a wasteful number, since it uses less digits than its factorization.

13121322212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13602082.

The product of its digits is 576, while the sum is 24.

Adding to 13121322212211 its reverse (11221222312131), we get a palindrome (24342544524342).

The spelling of 13121322212211 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 3 67 201 4801 14403 321667 965001 13597211 40791633 911013137 2733039411 65280210011 195840630033 4373774070737 13121322212211