Base | Representation |
---|---|
bin | 110010010000000000010110… |
… | …001110001110010001100011 |
3 | 1001222111121100000001010210020 |
4 | 302100000112032032101203 |
5 | 212431400011230311321 |
6 | 2102011002542204523 |
7 | 64356611534016060 |
oct | 6220002616162143 |
9 | 1058447300033706 |
10 | 221002210010211 |
11 | 644665690426a3 |
12 | 20953860b83743 |
13 | 964155a6661a6 |
14 | 3c807c7a0dc67 |
15 | 1a83b946d44c6 |
hex | c9001638e463 |
221002210010211 has 16 divisors (see below), whose sum is σ = 336774182976000. Its totient is φ = 126283635681408.
The previous prime is 221002210010191. The next prime is 221002210010249. The reversal of 221002210010211 is 112010012200122.
It is not a de Polignac number, because 221002210010211 - 27 = 221002210010083 is a prime.
It is not an unprimeable number, because it can be changed into a prime (221002210010011) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138415126 + ... + 140002683.
It is an arithmetic number, because the mean of its divisors is an integer number (21048386436000).
Almost surely, 2221002210010211 is an apocalyptic number.
221002210010211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
221002210010211 is a deficient number, since it is larger than the sum of its proper divisors (115771972965789).
221002210010211 is a wasteful number, since it uses less digits than its factorization.
221002210010211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 278455618.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 221002210010211 its reverse (112010012200122), we get a palindrome (333012222210333).
The spelling of 221002210010211 in words is "two hundred twenty-one trillion, two billion, two hundred ten million, ten thousand, two hundred eleven".
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