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10002221010101 = 11605038618867
BaseRepresentation
bin1001000110001101001011…
…0101001000110010110101
31022102012110222110020220202
42101203102311020302311
52302334022034310401
633134542405010245
72051431234540355
oct221432265106265
938365428406822
1010002221010101
113206a11003861
1211565b76b3985
13577289334c98
142681780b8b65
151252a9e1006b
hex918d2d48cb5

10002221010101 has 4 divisors (see below), whose sum is σ = 10002230789472. Its totient is φ = 10002211230732.

The previous prime is 10002221010097. The next prime is 10002221010109. The reversal of 10002221010101 is 10101012220001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10002221010101 - 22 = 10002221010097 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 (10002221010109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3148931 + ... + 5469936.

It is an arithmetic number, because the mean of its divisors is an integer number (2500557697368).

Almost surely, 210002221010101 is an apocalyptic number.

It is an amenable number.

10002221010101 is a deficient number, since it is larger than the sum of its proper divisors (9779371).

10002221010101 is an equidigital number, since it uses as much as digits as its factorization.

10002221010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779370.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10002221010101 its reverse (10101012220001), we get a palindrome (20103233230102).

The spelling of 10002221010101 in words is "ten trillion, two billion, two hundred twenty-one million, ten thousand, one hundred one".

Divisors: 1 1160503 8618867 10002221010101