Base | Representation |
---|---|
bin | 1100111000000010100… |
… | …0011111100111101110 |
3 | 210010221220111222021102 |
4 | 3032000220133213232 |
5 | 12111010031243042 |
6 | 245341334203102 |
7 | 21660402066155 |
oct | 3160050374756 |
9 | 703856458242 |
10 | 221201431022 |
11 | 858a1494120 |
12 | 36a53ab3492 |
13 | 17b2289c730 |
14 | a9c5b8a59c |
15 | 5b4990eb32 |
hex | 3380a1f9ee |
221201431022 has 64 divisors (see below), whose sum is σ = 400549653504. Its totient is φ = 90278893440.
The previous prime is 221201430991. The next prime is 221201431051. The reversal of 221201431022 is 220134102122.
It is a junction number, because it is equal to n+sod(n) for n = 221201430985 and 221201431003.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140568 + ... + 2241524.
It is an arithmetic number, because the mean of its divisors is an integer number (6258588336).
Almost surely, 2221201431022 is an apocalyptic number.
221201431022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
221201431022 is a deficient number, since it is larger than the sum of its proper divisors (179348222482).
221201431022 is a wasteful number, since it uses less digits than its factorization.
221201431022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101193.
The product of its (nonzero) digits is 384, while the sum is 20.
Adding to 221201431022 its reverse (220134102122), we get a palindrome (441335533144).
Subtracting from 221201431022 its reverse (220134102122), we obtain a square (1067328900 = 326702).
The spelling of 221201431022 in words is "two hundred twenty-one billion, two hundred one million, four hundred thirty-one thousand, twenty-two".
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