Base | Representation |
---|---|
bin | 1001100011100010010001… |
… | …01110010101111110011110 |
3 | 2202101202011100120020211022 |
4 | 10301301020232111332132 |
5 | 10223230441212321342 |
6 | 112404512123324142 |
7 | 4266036623052353 |
oct | 461611056257636 |
9 | 82352140506738 |
10 | 21012200120222 |
11 | 67712511a9913 |
12 | 243437b380652 |
13 | b9559901100c |
14 | 528dd2ad662a |
15 | 2668976ec9d2 |
hex | 131c48b95f9e |
21012200120222 has 16 divisors (see below), whose sum is σ = 31619791218960. Its totient is φ = 10472274042048.
The previous prime is 21012200120183. The next prime is 21012200120231. The reversal of 21012200120222 is 22202100221012.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 21012200120222.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8706554 + ... + 10854882.
It is an arithmetic number, because the mean of its divisors is an integer number (1976236951185).
Almost surely, 221012200120222 is an apocalyptic number.
21012200120222 is a deficient number, since it is larger than the sum of its proper divisors (10607591098738).
21012200120222 is a wasteful number, since it uses less digits than its factorization.
21012200120222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2164075.
The product of its (nonzero) digits is 128, while the sum is 17.
Adding to 21012200120222 its reverse (22202100221012), we get a palindrome (43214300341234).
The spelling of 21012200120222 in words is "twenty-one trillion, twelve billion, two hundred million, one hundred twenty thousand, two hundred twenty-two".
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