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9012010212221 = 19900152695959
BaseRepresentation
bin1000001100100100010110…
…1010101101101101111101
31011220112120111010211020012
42003021011222231231331
52140123044103242341
631100021011033005
71620045004614242
oct203110552555575
934815514124205
109012010212221
112964a76905355
121016707b9b765
13504aa118b843
1423227dc015c9
15109652cb80eb
hex83245aadb7d

9012010212221 has 8 divisors (see below), whose sum is σ = 9487380638400. Its totient is φ = 8536745196000.

The previous prime is 9012010212211. The next prime is 9012010212269. The reversal of 9012010212221 is 1222120102109.

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 9012010212221 - 226 = 9011943103357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012010212211) 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, 26176961 + ... + 26518998.

It is an arithmetic number, because the mean of its divisors is an integer number (1185922579800).

Almost surely, 29012010212221 is an apocalyptic number.

It is an amenable number.

9012010212221 is a deficient number, since it is larger than the sum of its proper divisors (475370426179).

9012010212221 is a wasteful number, since it uses less digits than its factorization.

9012010212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52704979.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 9012010212221 in words is "nine trillion, twelve billion, ten million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 19 9001 171019 52695959 1001223221 474316326959 9012010212221