Base | Representation |
---|---|
bin | 10001110010001010111… |
… | …101111011001010110100 |
3 | 11022211110101220020212221 |
4 | 101302022331323022310 |
5 | 130010331130413022 |
6 | 2333232003252124 |
7 | 154202555211610 |
oct | 21621275731264 |
9 | 4284411806787 |
10 | 1222102201012 |
11 | 431321917920 |
12 | 178a2767a044 |
13 | 8b322671264 |
14 | 43215ab0340 |
15 | 21bca2a5cc7 |
hex | 11c8af7b2b4 |
1222102201012 has 48 divisors (see below), whose sum is σ = 2666692933632. Its totient is φ = 476092262880.
The previous prime is 1222102201007. The next prime is 1222102201097. The reversal of 1222102201012 is 2101022012221.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2704953 + ... + 3124255.
It is an arithmetic number, because the mean of its divisors is an integer number (55556102784).
Almost surely, 21222102201012 is an apocalyptic number.
It is an amenable number.
1222102201012 is an abundant number, since it is smaller than the sum of its proper divisors (1444590732620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222102201012 is a wasteful number, since it uses less digits than its factorization.
1222102201012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 428788 (or 428786 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 1222102201012 its reverse (2101022012221), we get a palindrome (3323124213233).
The spelling of 1222102201012 in words is "one trillion, two hundred twenty-two billion, one hundred two million, two hundred one thousand, twelve".
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