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12002222222101 = 23521835748787
BaseRepresentation
bin1010111010100111110000…
…1100010010101100010101
31120111101211111120200102201
42232221330030102230111
53033121022342101401
641305424512004501
72346063153414106
oct256517414225425
946441744520381
1012002222222101
1139081286021a1
12141a13bb30731
13690a5cc01bc7
142d6ca6ba23ad
1515c31307bb01
hexaea7c312b15

12002222222101 has 4 divisors (see below), whose sum is σ = 12524057970912. Its totient is φ = 11480386473292.

The previous prime is 12002222222099. The next prime is 12002222222131. The reversal of 12002222222101 is 10122222220021.

12002222222101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12002222222101 - 21 = 12002222222099 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 (12002222222131) 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, 260917874371 + ... + 260917874416.

It is an arithmetic number, because the mean of its divisors is an integer number (3131014492728).

Almost surely, 212002222222101 is an apocalyptic number.

It is an amenable number.

12002222222101 is a deficient number, since it is larger than the sum of its proper divisors (521835748811).

12002222222101 is an equidigital number, since it uses as much as digits as its factorization.

12002222222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521835748810.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12002222222101 its reverse (10122222220021), we get a palindrome (22124444442122).

The spelling of 12002222222101 in words is "twelve trillion, two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 23 521835748787 12002222222101