Base | Representation |
---|---|
bin | 10110101111110010… |
… | …11110010001000010 |
3 | 1011112002020001212212 |
4 | 23113321132101002 |
5 | 200002244232320 |
6 | 5335443422122 |
7 | 611425104350 |
oct | 132771362102 |
9 | 34462201785 |
10 | 12212102210 |
11 | 51a7460160 |
12 | 2449984942 |
13 | 11c80984a9 |
14 | 83bc707d0 |
15 | 4b71ba9c5 |
hex | 2d7e5e442 |
12212102210 has 64 divisors (see below), whose sum is σ = 27434225664. Its totient is φ = 3802430400.
The previous prime is 12212102209. The next prime is 12212102233. The reversal of 12212102210 is 1220121221.
It is a Harshad number since it is a multiple of its sum of digits (14).
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, 786179 + ... + 801561.
It is an arithmetic number, because the mean of its divisors is an integer number (428659776).
Almost surely, 212212102210 is an apocalyptic number.
12212102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12212102210 is an abundant number, since it is smaller than the sum of its proper divisors (15222123454).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12212102210 is a wasteful number, since it uses less digits than its factorization.
12212102210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16439.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 12212102210 its reverse (1220121221), we get a palindrome (13432223431).
The spelling of 12212102210 in words is "twelve billion, two hundred twelve million, one hundred two thousand, two hundred ten".
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