Base | Representation |
---|---|
bin | 111000111001110111… |
… | …1110111011110011001 |
3 | 102200102101202121111220 |
4 | 1301303233313132121 |
5 | 4000231424341441 |
6 | 132045515442253 |
7 | 11554153315236 |
oct | 1616357673631 |
9 | 380371677456 |
10 | 122201012121 |
11 | 47909316101 |
12 | 1b824a56389 |
13 | b6a61b15c6 |
14 | 5cb37a878d |
15 | 32a3322466 |
hex | 1c73bf7799 |
122201012121 has 8 divisors (see below), whose sum is σ = 162948499680. Its totient is φ = 81460432992.
The previous prime is 122201012119. The next prime is 122201012137. The reversal of 122201012121 is 121210102221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 122201012121 - 21 = 122201012119 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 122201012121.
It is not an unprimeable number, because it can be changed into a prime (122201012191) 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, 1685691 + ... + 1756688.
It is an arithmetic number, because the mean of its divisors is an integer number (20368562460).
Almost surely, 2122201012121 is an apocalyptic number.
It is an amenable number.
122201012121 is a deficient number, since it is larger than the sum of its proper divisors (40747487559).
122201012121 is a wasteful number, since it uses less digits than its factorization.
122201012121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3454215.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 122201012121 its reverse (121210102221), we get a palindrome (243411114342).
The spelling of 122201012121 in words is "one hundred twenty-two billion, two hundred one million, twelve thousand, one hundred twenty-one".
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