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233122130221 = 1741547924439
BaseRepresentation
bin1101100100011100101…
…0010110100100101101
3211021201200102020101011
43121013022112210231
512304413231131341
6255032252145221
722561661261221
oct3310712264455
9737650366334
10233122130221
118a959401942
1239220168211
1318ca248a1b6
14b3d7044781
1560e6218b81
hex364729692d

233122130221 has 8 divisors (see below), whose sum is σ = 233308150400. Its totient is φ = 232936173360.

The previous prime is 233122130207. The next prime is 233122130233. The reversal of 233122130221 is 122031221332.

233122130221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-233122130221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233122130192 and 233122130201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233122130201) 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 7 ways as a sum of consecutive naturals, for example, 9526720 + ... + 9551158.

It is an arithmetic number, because the mean of its divisors is an integer number (29163518800).

Almost surely, 2233122130221 is an apocalyptic number.

It is an amenable number.

233122130221 is a deficient number, since it is larger than the sum of its proper divisors (186020179).

233122130221 is a wasteful number, since it uses less digits than its factorization.

233122130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31659.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 233122130221 its reverse (122031221332), we get a palindrome (355153351553).

The spelling of 233122130221 in words is "two hundred thirty-three billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 1741 5479 24439 9538939 42548299 133901281 233122130221