Base | Representation |
---|---|
bin | 10001110010001010111… |
… | …101001100100101100100 |
3 | 11022211110101112120011021 |
4 | 101302022331030211210 |
5 | 130010331103311322 |
6 | 2333231555220524 |
7 | 154202553455416 |
oct | 21621275144544 |
9 | 4284411476137 |
10 | 1222102010212 |
11 | 4313217a7536 |
12 | 178a275a7744 |
13 | 8b322605465 |
14 | 43215a609b6 |
15 | 21bca2694c7 |
hex | 11c8af4c964 |
1222102010212 has 48 divisors (see below), whose sum is σ = 2235663682560. Its totient is φ = 583785925632.
The previous prime is 1222102010201. The next prime is 1222102010219. The reversal of 1222102010212 is 2120102012221.
It is a happy number.
It is a super-2 number, since 2×12221020102122 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1222102010219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114348733 + ... + 114359419.
It is an arithmetic number, because the mean of its divisors is an integer number (46576326720).
Almost surely, 21222102010212 is an apocalyptic number.
It is an amenable number.
1222102010212 is a deficient number, since it is larger than the sum of its proper divisors (1013561672348).
1222102010212 is a wasteful number, since it uses less digits than its factorization.
1222102010212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20980 (or 20978 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 1222102010212 its reverse (2120102012221), we get a palindrome (3342204022433).
The spelling of 1222102010212 in words is "one trillion, two hundred twenty-two billion, one hundred two million, ten thousand, two hundred twelve".
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