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22010000221 = 1117971111341
BaseRepresentation
bin10100011111111001…
…011111001101011101
32002210220200212012101
4110133321133031131
5330034030001341
614040010405101
71406266625566
oct243771371535
962726625171
1022010000221
119375086a30
124323130791
1320c9c43991
1410cb22516d
1588c456831
hex51fe5f35d

22010000221 has 8 divisors (see below), whose sum is σ = 24012461088. Its totient is φ = 20007798000.

The previous prime is 22010000183. The next prime is 22010000231. The reversal of 22010000221 is 12200001022.

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 22010000221 - 211 = 22009998173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22010000198 and 22010000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010000231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142011 + ... + 253351.

It is an arithmetic number, because the mean of its divisors is an integer number (3001557636).

Almost surely, 222010000221 is an apocalyptic number.

It is an amenable number.

22010000221 is a deficient number, since it is larger than the sum of its proper divisors (2002460867).

22010000221 is a wasteful number, since it uses less digits than its factorization.

22010000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129323.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22010000221 its reverse (12200001022), we get a palindrome (34210001243).

The spelling of 22010000221 in words is "twenty-two billion, ten million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 11 17971 111341 197681 1224751 2000909111 22010000221