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10220004421 = 111138222047
BaseRepresentation
bin10011000010010100…
…01110010001000101
3222101020202000110021
421201022032101011
5131412310120141
64410042055141
7511155414154
oct114112162105
928336660407
1010220004421
114374a20650
121b927aa4b1
13c6b459bc3
146cd47159b
153ec3696d1
hex26128e445

10220004421 has 8 divisors (see below), whose sum is σ = 11247761664. Its totient is φ = 9208691520.

The previous prime is 10220004419. The next prime is 10220004439. The reversal of 10220004421 is 12440002201.

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 10220004421 - 21 = 10220004419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220004395 and 10220004404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220004401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4109781 + ... + 4112266.

It is an arithmetic number, because the mean of its divisors is an integer number (1405970208).

Almost surely, 210220004421 is an apocalyptic number.

10220004421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10220004421 is a deficient number, since it is larger than the sum of its proper divisors (1027757243).

10220004421 is a wasteful number, since it uses less digits than its factorization.

10220004421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222171.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10220004421 its reverse (12440002201), we get a palindrome (22660006622).

The spelling of 10220004421 in words is "ten billion, two hundred twenty million, four thousand, four hundred twenty-one".

Divisors: 1 11 113 1243 8222047 90442517 929091311 10220004421