Base | Representation |
---|---|
bin | 10001110000011010010… |
… | …011011000010100000001 |
3 | 11022122120200011002120002 |
4 | 101300122103120110001 |
5 | 124442443233000001 |
6 | 2332320241525345 |
7 | 154104663603521 |
oct | 21603223302401 |
9 | 4278520132502 |
10 | 1220212000001 |
11 | 430541954925 |
12 | 17859a643855 |
13 | 8b0b0b8b917 |
14 | 430b6a37681 |
15 | 21b1938146b |
hex | 11c1a4d8501 |
1220212000001 has 8 divisors (see below), whose sum is σ = 1254100379520. Its totient is φ = 1186784687088.
The previous prime is 1220211999991. The next prime is 1220212000097. The reversal of 1220212000001 is 1000002120221.
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 1220212000001 - 226 = 1220144891137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1220212003001) 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, 115261286 + ... + 115271871.
It is an arithmetic number, because the mean of its divisors is an integer number (156762547440).
Almost surely, 21220212000001 is an apocalyptic number.
It is an amenable number.
1220212000001 is a deficient number, since it is larger than the sum of its proper divisors (33888379519).
1220212000001 is an equidigital number, since it uses as much as digits as its factorization.
1220212000001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 230533303.
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 1220212000001 its reverse (1000002120221), we get a palindrome (2220214120222).
The spelling of 1220212000001 in words is "one trillion, two hundred twenty billion, two hundred twelve million, one", and thus it is an aban number.
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