Base | Representation |
---|---|
bin | 110010000010111001001101… |
… | …111110001100111001101101 |
3 | 1001212022110200012220002220001 |
4 | 302002321031332030321231 |
5 | 212322114230230432341 |
6 | 2100041032454024301 |
7 | 64234533655014604 |
oct | 6202711576147155 |
9 | 1055273605802801 |
10 | 220101202202221 |
11 | 6414943968683a |
12 | 20829107348091 |
13 | 95a75ba167cc2 |
14 | 3c4cd52846a3b |
15 | 1a6a50d982d31 |
hex | c82e4df8ce6d |
220101202202221 has 4 divisors (see below), whose sum is σ = 220101250402012. Its totient is φ = 220101154002432.
The previous prime is 220101202202213. The next prime is 220101202202263. The reversal of 220101202202221 is 122202202101022.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 182231775455625 + 37869426746596 = 13499325^2 + 6153814^2 .
It is a cyclic number.
It is not a de Polignac number, because 220101202202221 - 23 = 220101202202213 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (220101202202521) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16438356 + ... + 26653741.
It is an arithmetic number, because the mean of its divisors is an integer number (55025312600503).
Almost surely, 2220101202202221 is an apocalyptic number.
It is an amenable number.
220101202202221 is a deficient number, since it is larger than the sum of its proper divisors (48199791).
220101202202221 is an equidigital number, since it uses as much as digits as its factorization.
220101202202221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48199790.
The product of its (nonzero) digits is 256, while the sum is 19.
Adding to 220101202202221 its reverse (122202202101022), we get a palindrome (342303404303243).
The spelling of 220101202202221 in words is "two hundred twenty trillion, one hundred one billion, two hundred two million, two hundred two thousand, two hundred twenty-one".
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