Base | Representation |
---|---|
bin | 10001110010001010111… |
… | …101001111001110001001 |
3 | 11022211110101120002221212 |
4 | 101302022331033032021 |
5 | 130010331104133001 |
6 | 2333231555342505 |
7 | 154202553532031 |
oct | 21621275171611 |
9 | 4284411502855 |
10 | 1222102021001 |
11 | 431321804654 |
12 | 178a275b1a35 |
13 | 8b32260a344 |
14 | 43215a648c1 |
15 | 21bca26c7bb |
hex | 11c8af4f389 |
1222102021001 has 8 divisors (see below), whose sum is σ = 1224940809024. Its totient is φ = 1219263594640.
The previous prime is 1222102020967. The next prime is 1222102021013. The reversal of 1222102021001 is 1001202012221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1222102021001 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1222102020001) 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, 7392095 + ... + 7555611.
It is an arithmetic number, because the mean of its divisors is an integer number (153117601128).
Almost surely, 21222102021001 is an apocalyptic number.
It is an amenable number.
1222102021001 is a deficient number, since it is larger than the sum of its proper divisors (2838788023).
1222102021001 is a wasteful number, since it uses less digits than its factorization.
1222102021001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180831.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 1222102021001 its reverse (1001202012221), we get a palindrome (2223304033222).
The spelling of 1222102021001 in words is "one trillion, two hundred twenty-two billion, one hundred two million, twenty-one thousand, one".
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