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2221013223 = 331113575243
BaseRepresentation
bin1000010001100001…
…1111100011100111
312201210020011101000
42010120133203213
514022034410343
61004220004343
7106016205132
oct20430374347
95653204330
102221013223
11a3a782120
1251b9906b3
132951ab010
14170d8b219
15ceebced3
hex8461f8e7

2221013223 has 32 divisors (see below), whose sum is σ = 3865639680. Its totient is φ = 1242522720.

The previous prime is 2221013213. The next prime is 2221013237. The reversal of 2221013223 is 3223101222.

2221013223 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221013223 - 28 = 2221012967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221013196 and 2221013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221013203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283761 + ... + 291482.

It is an arithmetic number, because the mean of its divisors is an integer number (120801240).

Almost surely, 22221013223 is an apocalyptic number.

2221013223 is a deficient number, since it is larger than the sum of its proper divisors (1644626457).

2221013223 is a wasteful number, since it uses less digits than its factorization.

2221013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575276 (or 575270 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2221013223 is about 47127.6269612634. The cubic root of 2221013223 is about 1304.7191838629.

Adding to 2221013223 its reverse (3223101222), we get a palindrome (5444114445).

The spelling of 2221013223 in words is "two billion, two hundred twenty-one million, thirteen thousand, two hundred twenty-three".

Divisors: 1 3 9 11 13 27 33 39 99 117 143 297 351 429 1287 3861 575243 1725729 5177187 6327673 7478159 15531561 18983019 22434477 56949057 67303431 82259749 170847171 201910293 246779247 740337741 2221013223