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10020222202121 = 88721787518509
BaseRepresentation
bin1001000111010000001111…
…0010001111000100001001
31022110220221111212120002022
42101310003302033010021
52303132403340431441
633151120533014225
72052636306255635
oct221640362170411
938426844776068
1010020222202121
11321360922a85a
121159ba0184375
13578b97891cb1
14268da4b35dc5
151259b045184b
hex91d03c8f109

10020222202121 has 8 divisors (see below), whose sum is σ = 10031998741440. Its totient is φ = 10008446745168.

The previous prime is 10020222202103. The next prime is 10020222202169. The reversal of 10020222202121 is 12120222202001.

It is a happy number.

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 10020222202121 - 26 = 10020222202057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10020222202121.

It is not an unprimeable number, because it can be changed into a prime (10020222202181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19065815 + ... + 19584323.

It is an arithmetic number, because the mean of its divisors is an integer number (1253999842680).

Almost surely, 210020222202121 is an apocalyptic number.

It is an amenable number.

10020222202121 is a deficient number, since it is larger than the sum of its proper divisors (11776539319).

10020222202121 is an equidigital number, since it uses as much as digits as its factorization.

10020222202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541183.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10020222202121 its reverse (12120222202001), we get a palindrome (22140444404122).

The spelling of 10020222202121 in words is "ten trillion, twenty billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 887 21787 518509 19325069 459917483 11296755583 10020222202121