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122203302131321 = 775786693181721
BaseRepresentation
bin11011110010010010101100…
…011010011111011001111001
3121000200112002020110012222222
4123302102230122133121321
5112004134330321200241
61111523231052053425
734511616514246235
oct3362225432373171
9530615066405888
10122203302131321
1135a35147246344
121185799a764275
13532595015a668
1422269583b35c5
15e1dbc592ba4b
hex6f24ac69f679

122203302131321 has 8 divisors (see below), whose sum is σ = 122221138433544. Its totient is φ = 122185466381440.

The previous prime is 122203302131257. The next prime is 122203302131333. The reversal of 122203302131321 is 123131203302221.

It can be written as a sum of positive squares in 4 ways, for example, as 21324178431721 + 100879123699600 = 4617811^2 + 10043860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122203302131321 - 26 = 122203302131257 is a prime.

It is a super-2 number, since 2×1222033021313212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122203302131341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672386741 + ... + 672568461.

It is an arithmetic number, because the mean of its divisors is an integer number (15277642304193).

Almost surely, 2122203302131321 is an apocalyptic number.

It is an amenable number.

122203302131321 is a deficient number, since it is larger than the sum of its proper divisors (17836302223).

122203302131321 is an equidigital number, since it uses as much as digits as its factorization.

122203302131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276171.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 122203302131321 its reverse (123131203302221), we get a palindrome (245334505433542).

The spelling of 122203302131321 in words is "one hundred twenty-two trillion, two hundred three billion, three hundred two million, one hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 7757 86693 181721 672477601 1409609797 15753938653 122203302131321