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122102221222 = 294907643273
BaseRepresentation
bin111000110110111011…
…1000000100110100110
3102200011111212111212201
41301231313000212212
54000031132034342
6132032030205114
711551543520152
oct1615567004646
9380144774781
10122102221222
1147868580033
121b7b795379a
13b68b8a2257
145ca4610062
15329980adb7
hex1c6ddc09a6

122102221222 has 8 divisors (see below), whose sum is σ = 183155546376. Its totient is φ = 61050372432.

The previous prime is 122102221187. The next prime is 122102221229. The reversal of 122102221222 is 222122201221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122102221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102221229) 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 3 ways as a sum of consecutive naturals, for example, 131823 + ... + 511450.

It is an arithmetic number, because the mean of its divisors is an integer number (22894443297).

Almost surely, 2122102221222 is an apocalyptic number.

122102221222 is a deficient number, since it is larger than the sum of its proper divisors (61053325154).

122102221222 is an equidigital number, since it uses as much as digits as its factorization.

122102221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738182.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122102221222 its reverse (222122201221), we get a palindrome (344224422443).

The spelling of 122102221222 in words is "one hundred twenty-two billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 94907 189814 643273 1286546 61051110611 122102221222