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122010202111 = 717430028873
BaseRepresentation
bin111000110100001011…
…1111110111111111111
3102122221002201110101111
41301220113332333333
53444334102431421
6132014542022451
711546345414650
oct1615027767777
9378832643344
10122010202111
114782063a786
121b790b77a27
13b6757c4285
145c962d9527
1532916d0ee1
hex1c685fefff

122010202111 has 4 divisors (see below), whose sum is σ = 139440230992. Its totient is φ = 104580173232.

The previous prime is 122010202081. The next prime is 122010202169. The reversal of 122010202111 is 111202010221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122010202111 - 225 = 121976647679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122010202091 and 122010202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010212111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715014430 + ... + 8715014443.

It is an arithmetic number, because the mean of its divisors is an integer number (34860057748).

Almost surely, 2122010202111 is an apocalyptic number.

122010202111 is a deficient number, since it is larger than the sum of its proper divisors (17430028881).

122010202111 is an equidigital number, since it uses as much as digits as its factorization.

122010202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430028880.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122010202111 its reverse (111202010221), we get a palindrome (233212212332).

The spelling of 122010202111 in words is "one hundred twenty-two billion, ten million, two hundred two thousand, one hundred eleven".

Divisors: 1 7 17430028873 122010202111