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220313211003221 = 71423111971975313
BaseRepresentation
bin110010000101111110101010…
…101011100110000101010101
31001220001201220110212002102212
4302011332222223212011111
5212334102424004100341
62100322254130243205
764256050515052340
oct6205765253460525
91056051813762385
10220313211003221
116422034306a966
1220862214726505
1395c15a63b088b
143c59305797457
151a70cbb3155eb
hexc85faaae6155

220313211003221 has 16 divisors (see below), whose sum is σ = 251986097831424. Its totient is φ = 188690240772864.

The previous prime is 220313211003091. The next prime is 220313211003239. The reversal of 220313211003221 is 122300112313022.

It is a cyclic number.

It is not a de Polignac number, because 220313211003221 - 222 = 220313206808917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220313211005221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110545661 + ... + 112520973.

It is an arithmetic number, because the mean of its divisors is an integer number (15749131114464).

Almost surely, 2220313211003221 is an apocalyptic number.

It is an amenable number.

220313211003221 is a deficient number, since it is larger than the sum of its proper divisors (31672886828203).

220313211003221 is a wasteful number, since it uses less digits than its factorization.

220313211003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987940.

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

Adding to 220313211003221 its reverse (122300112313022), we get a palindrome (342613323316243).

The spelling of 220313211003221 in words is "two hundred twenty trillion, three hundred thirteen billion, two hundred eleven million, three thousand, two hundred twenty-one".

Divisors: 1 7 1423 9961 11197 78379 1975313 13827191 15933331 111533317 2810870399 19676092793 22117579661 154823057627 31473315857603 220313211003221