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2122012000001 = 19937106435873
BaseRepresentation
bin11110111000010001110…
…001010111111100000001
321111212021122221122121002
4132320101301113330001
5234231340033000001
64302501105341345
7306211302251465
oct36702161277401
97455248848532
102122012000001
11748a384a9323
122a3315637855
13125149537a8a
14749c50d64a5
153a2e991646b
hex1ee11c57f01

2122012000001 has 4 divisors (see below), whose sum is σ = 2122118455812. Its totient is φ = 2121905544192.

The previous prime is 2122011999973. The next prime is 2122012000021. The reversal of 2122012000001 is 1000002102212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1302668409025 + 819343590976 = 1141345^2 + 905176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122012000001 - 26 = 2122011999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122012000021) 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, 53198000 + ... + 53237873.

It is an arithmetic number, because the mean of its divisors is an integer number (530529613953).

Almost surely, 22122012000001 is an apocalyptic number.

It is an amenable number.

2122012000001 is a deficient number, since it is larger than the sum of its proper divisors (106455811).

2122012000001 is a wasteful number, since it uses less digits than its factorization.

2122012000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106455810.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2122012000001 its reverse (1000002102212), we get a palindrome (3122014102213).

The spelling of 2122012000001 in words is "two trillion, one hundred twenty-two billion, twelve million, one", and thus it is an aban number.

Divisors: 1 19937 106435873 2122012000001