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122232113213 = 717461730459
BaseRepresentation
bin111000111010110011…
…0100000100000111101
3102200111120021201012012
41301311212200200331
54000312410110323
6132052550221005
711555011551050
oct1616546404075
9380446251165
10122232113213
1147924928891
121b833354765
13b6ac780812
145cb7982a97
1532a5e17678
hex1c759a083d

122232113213 has 4 divisors (see below), whose sum is σ = 139693843680. Its totient is φ = 104770382748.

The previous prime is 122232113203. The next prime is 122232113239. The reversal of 122232113213 is 312311232221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122232113213 - 26 = 122232113149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122232113203) 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, 8730865223 + ... + 8730865236.

It is an arithmetic number, because the mean of its divisors is an integer number (34923460920).

Almost surely, 2122232113213 is an apocalyptic number.

It is an amenable number.

122232113213 is a deficient number, since it is larger than the sum of its proper divisors (17461730467).

122232113213 is an equidigital number, since it uses as much as digits as its factorization.

122232113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461730466.

The product of its digits is 864, while the sum is 23.

Adding to 122232113213 its reverse (312311232221), we get a palindrome (434543345434).

The spelling of 122232113213 in words is "one hundred twenty-two billion, two hundred thirty-two million, one hundred thirteen thousand, two hundred thirteen".

Divisors: 1 7 17461730459 122232113213