Base | Representation |
---|---|
bin | 10010110110100010… |
… | …10111000100101001 |
3 | 222010100211212000011 |
4 | 21123101113010221 |
5 | 131212012242301 |
6 | 4352152411521 |
7 | 505545612202 |
oct | 113321270451 |
9 | 28110755004 |
10 | 10121212201 |
11 | 4324184591 |
12 | 1b656a6ba1 |
13 | c53b4a079 |
14 | 6c02b65a9 |
15 | 3e3852a51 |
hex | 25b457129 |
10121212201 has 8 divisors (see below), whose sum is σ = 10656103680. Its totient is φ = 9586540368.
The previous prime is 10121212181. The next prime is 10121212219. The reversal of 10121212201 is 10221212101.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 10121212201 - 221 = 10119115049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10121212001) 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, 44295 + ... + 149011.
It is an arithmetic number, because the mean of its divisors is an integer number (1332012960).
Almost surely, 210121212201 is an apocalyptic number.
It is an amenable number.
10121212201 is a deficient number, since it is larger than the sum of its proper divisors (534891479).
10121212201 is a wasteful number, since it uses less digits than its factorization.
10121212201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 109823.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 10121212201 its reverse (10221212101), we get a palindrome (20342424302).
The spelling of 10121212201 in words is "ten billion, one hundred twenty-one million, two hundred twelve thousand, two hundred one".
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