Base | Representation |
---|---|
bin | 1011101101001110111… |
… | …1110001100100101011 |
3 | 201020010110122222212210 |
4 | 2323103233301210223 |
5 | 11243343434341021 |
6 | 232221013140203 |
7 | 20346652252413 |
oct | 2732357614453 |
9 | 636113588783 |
10 | 201121012011 |
11 | 78327628107 |
12 | 32b8b02a663 |
13 | 15c72648aaa |
14 | 9a3cd2d643 |
15 | 5371aaae76 |
hex | 2ed3bf192b |
201121012011 has 24 divisors (see below), whose sum is σ = 277201574352. Its totient is φ = 129703603200.
The previous prime is 201121012007. The next prime is 201121012013. The reversal of 201121012011 is 110210121102.
It is not a de Polignac number, because 201121012011 - 22 = 201121012007 is a prime.
It is a super-2 number, since 2×2011210120112 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (201121012013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7993531 + ... + 8018651.
It is an arithmetic number, because the mean of its divisors is an integer number (11550065598).
Almost surely, 2201121012011 is an apocalyptic number.
201121012011 is a deficient number, since it is larger than the sum of its proper divisors (76080562341).
201121012011 is a wasteful number, since it uses less digits than its factorization.
201121012011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27963 (or 27932 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 201121012011 its reverse (110210121102), we get a palindrome (311331133113).
The spelling of 201121012011 in words is "two hundred one billion, one hundred twenty-one million, twelve thousand, eleven".
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