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122102223121 = 1731231693023
BaseRepresentation
bin111000110110111011…
…1000001000100010001
3102200011111212121111001
41301231313001010101
54000031132114441
6132032030222001
711551543525534
oct1615567010421
9380144777431
10122102223121
11478685814aa
121b7b7954901
13b68b8a3088
145ca4610a1b
15329980b731
hex1c6ddc1111

122102223121 has 8 divisors (see below), whose sum is σ = 133455181824. Its totient is φ = 111212650560.

The previous prime is 122102223049. The next prime is 122102223151. The reversal of 122102223121 is 121322201221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122102223121 - 27 = 122102222993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102223151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115845985 + ... + 115847038.

It is an arithmetic number, because the mean of its divisors is an integer number (16681897728).

Almost surely, 2122102223121 is an apocalyptic number.

It is an amenable number.

122102223121 is a deficient number, since it is larger than the sum of its proper divisors (11352958703).

122102223121 is a wasteful number, since it uses less digits than its factorization.

122102223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231693071.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122102223121 its reverse (121322201221), we get a palindrome (243424424342).

The spelling of 122102223121 in words is "one hundred twenty-two billion, one hundred two million, two hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 17 31 527 231693023 3938781391 7182483713 122102223121