Base | Representation |
---|---|
bin | 1100010101110101110… |
… | …0000011000100100001 |
3 | 202021021002222100020020 |
4 | 3011131130003010201 |
5 | 11433204340444301 |
6 | 241222350304053 |
7 | 21214036013130 |
oct | 3053534030441 |
9 | 667232870206 |
10 | 212021031201 |
11 | 81a10387931 |
12 | 351114b8029 |
13 | 16cbb9385a5 |
14 | a394815917 |
15 | 57ad99b436 |
hex | 315d703121 |
212021031201 has 32 divisors (see below), whose sum is σ = 327965257728. Its totient is φ = 119323480320.
The previous prime is 212021031199. The next prime is 212021031223. The reversal of 212021031201 is 102130120212.
It is not a de Polignac number, because 212021031201 - 21 = 212021031199 is a prime.
It is not an unprimeable number, because it can be changed into a prime (212021031241) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9419881 + ... + 9442361.
It is an arithmetic number, because the mean of its divisors is an integer number (10248914304).
Almost surely, 2212021031201 is an apocalyptic number.
212021031201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
212021031201 is a deficient number, since it is larger than the sum of its proper divisors (115944226527).
212021031201 is a wasteful number, since it uses less digits than its factorization.
212021031201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29261.
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 212021031201 its reverse (102130120212), we get a palindrome (314151151413).
The spelling of 212021031201 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, two hundred one".
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