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122213211233 = 433282247601
BaseRepresentation
bin111000111010001111…
…0011001110001100001
3102200110020201101112212
41301310132121301201
54000243040224413
6132051033131505
711554362104201
oct1616436316141
9380406641485
10122213211233
1147915198513
121b828b59b95
13b6a8893109
145cb5262401
1532a4431ca8
hex1c74799c61

122213211233 has 4 divisors (see below), whose sum is σ = 122495459268. Its totient is φ = 121930963200.

The previous prime is 122213211223. The next prime is 122213211247. The reversal of 122213211233 is 332112312221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332112312221 = 1468332261837.

It can be written as a sum of positive squares in 2 ways, for example, as 29986809889 + 92226401344 = 173167^2 + 303688^2 .

It is a cyclic number.

It is not a de Polignac number, because 122213211233 - 210 = 122213210209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122213211199 and 122213211208.

It is not an unprimeable number, because it can be changed into a prime (122213211223) 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, 141123368 + ... + 141124233.

It is an arithmetic number, because the mean of its divisors is an integer number (30623864817).

Almost surely, 2122213211233 is an apocalyptic number.

It is an amenable number.

122213211233 is a deficient number, since it is larger than the sum of its proper divisors (282248035).

122213211233 is an equidigital number, since it uses as much as digits as its factorization.

122213211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282248034.

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

Adding to 122213211233 its reverse (332112312221), we get a palindrome (454325523454).

The spelling of 122213211233 in words is "one hundred twenty-two billion, two hundred thirteen million, two hundred eleven thousand, two hundred thirty-three".

Divisors: 1 433 282247601 122213211233