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13221330222121 = 747229317525693
BaseRepresentation
bin1100000001100101010010…
…1100001111110000101001
31201210221120020100202201121
43000121110230033300221
53213104241014101441
644041443435215241
72533131613425040
oct300312454176051
951727506322647
1013221330222121
11423815325a53a
1215964708a7521
1374b9c613c2a8
14339cb6d39557
1517ddb5536dd1
hexc0654b0fc29

13221330222121 has 16 divisors (see below), whose sum is σ = 15438313741824. Its totient is φ = 11086612553664.

The previous prime is 13221330222119. The next prime is 13221330222137. The reversal of 13221330222121 is 12122203312231.

It is a cyclic number.

It is not a de Polignac number, because 13221330222121 - 21 = 13221330222119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221330202121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8008450 + ... + 9517243.

It is an arithmetic number, because the mean of its divisors is an integer number (964894608864).

Almost surely, 213221330222121 is an apocalyptic number.

It is an amenable number.

13221330222121 is a deficient number, since it is larger than the sum of its proper divisors (2216983519703).

13221330222121 is a wasteful number, since it uses less digits than its factorization.

13221330222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17528040.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13221330222121 its reverse (12122203312231), we get a palindrome (25343533534352).

The spelling of 13221330222121 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 47 329 2293 16051 107771 754397 17525693 122679851 823707571 5765952997 40186414049 281304898343 1888761460303 13221330222121