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122222313223 = 519723517859
BaseRepresentation
bin111000111010100000…
…1000111111100000111
3102200110212211211010121
41301311001013330013
54000302403010343
6132052000202411
711554532343463
oct1616501077407
9380425754117
10122222313223
114791a344a1a
121b830009407
13b6aa72bcca
145cb65514a3
1532a512daed
hex1c75047f07

122222313223 has 4 divisors (see below), whose sum is σ = 122245836280. Its totient is φ = 122198790168.

The previous prime is 122222313173. The next prime is 122222313287. The reversal of 122222313223 is 322313222221.

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 122222313223 - 29 = 122222312711 is a prime.

It is a super-2 number, since 2×1222223132232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222313523) 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, 11753733 + ... + 11764126.

It is an arithmetic number, because the mean of its divisors is an integer number (30561459070).

Almost surely, 2122222313223 is an apocalyptic number.

122222313223 is a deficient number, since it is larger than the sum of its proper divisors (23523057).

122222313223 is an equidigital number, since it uses as much as digits as its factorization.

122222313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523056.

The product of its digits is 3456, while the sum is 25.

Adding to 122222313223 its reverse (322313222221), we get a palindrome (444535535444).

The spelling of 122222313223 in words is "one hundred twenty-two billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 5197 23517859 122222313223