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122142112241 = 990112336341
BaseRepresentation
bin111000111000000111…
…1001011100111110001
3102200021021221012001212
41301300033023213301
54000121340042431
6132040013205505
711552536552412
oct1616017134761
9380237835055
10122142112241
1147889046816
121b809190895
13b696c2b2c6
145ca9a35809
15329d08a72b
hex1c703cb9f1

122142112241 has 4 divisors (see below), whose sum is σ = 122154458484. Its totient is φ = 122129766000.

The previous prime is 122142112231. The next prime is 122142112243. The reversal of 122142112241 is 142211241221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82898502241 + 39243610000 = 287921^2 + 198100^2 .

It is a cyclic number.

It is not a de Polignac number, because 122142112241 - 26 = 122142112177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122142112243) 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, 6158270 + ... + 6178071.

It is an arithmetic number, because the mean of its divisors is an integer number (30538614621).

Almost surely, 2122142112241 is an apocalyptic number.

It is an amenable number.

122142112241 is a deficient number, since it is larger than the sum of its proper divisors (12346243).

122142112241 is an equidigital number, since it uses as much as digits as its factorization.

122142112241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12346242.

The product of its digits is 512, while the sum is 23.

Adding to 122142112241 its reverse (142211241221), we get a palindrome (264353353462).

The spelling of 122142112241 in words is "one hundred twenty-two billion, one hundred forty-two million, one hundred twelve thousand, two hundred forty-one".

Divisors: 1 9901 12336341 122142112241