Base | Representation |
---|---|
bin | 111000111010001011… |
… | …0110100001001010110 |
3 | 102200110002222022222100 |
4 | 1301310112310021112 |
5 | 4000242033101402 |
6 | 132050522342530 |
7 | 11554336151034 |
oct | 1616426641126 |
9 | 380402868870 |
10 | 122211222102 |
11 | 4791405a002 |
12 | 1b82835aa46 |
13 | b6a8347908 |
14 | 5cb4ca5554 |
15 | 32a418c71c |
hex | 1c745b4256 |
122211222102 has 12 divisors (see below), whose sum is σ = 264790981260. Its totient is φ = 40737074028.
The previous prime is 122211221983. The next prime is 122211222109. The reversal of 122211222102 is 201222112221.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6789512339 = 122211222102 / (1 + 2 + 2 + 2 + 1 + 1 + 2 + 2 + 2 + 1 + 0 + 2).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122211222109) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3394756152 + ... + 3394756187.
It is an arithmetic number, because the mean of its divisors is an integer number (22065915105).
Almost surely, 2122211222102 is an apocalyptic number.
122211222102 is an abundant number, since it is smaller than the sum of its proper divisors (142579759158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122211222102 is a wasteful number, since it uses less digits than its factorization.
122211222102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6789512347 (or 6789512344 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 122211222102 its reverse (201222112221), we get a palindrome (323433334323).
The spelling of 122211222102 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred two".
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