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22320310221 = 3211225457679
BaseRepresentation
bin10100110010011001…
…001110011111001101
32010121112121020111100
4110302121032133031
5331202444411341
614130453413313
71420055335506
oct246231163715
963545536440
1022320310221
119514262480
1243ab03a239
132149311471
14111a51dbad
158a98003b6
hex53264e7cd

22320310221 has 12 divisors (see below), whose sum is σ = 35171398080. Its totient is φ = 13527460680.

The previous prime is 22320310189. The next prime is 22320310231. The reversal of 22320310221 is 12201302322.

It is not a de Polignac number, because 22320310221 - 25 = 22320310189 is a prime.

It is a super-3 number, since 3×223203102213 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22320310194 and 22320310203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320310231) 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 11 ways as a sum of consecutive naturals, for example, 112728741 + ... + 112728938.

It is an arithmetic number, because the mean of its divisors is an integer number (2930949840).

Almost surely, 222320310221 is an apocalyptic number.

It is an amenable number.

22320310221 is a deficient number, since it is larger than the sum of its proper divisors (12851087859).

22320310221 is a wasteful number, since it uses less digits than its factorization.

22320310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225457696 (or 225457693 counting only the distinct ones).

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

Adding to 22320310221 its reverse (12201302322), we get a palindrome (34521612543).

The spelling of 22320310221 in words is "twenty-two billion, three hundred twenty million, three hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 9 11 33 99 225457679 676373037 2029119111 2480034469 7440103407 22320310221