Base | Representation |
---|---|
bin | 11110111000011110001… |
… | …111000010010010000010 |
3 | 21111212211020102010220100 |
4 | 132320132033002102002 |
5 | 234232302100232320 |
6 | 4302533535223230 |
7 | 306216421506066 |
oct | 36703617022202 |
9 | 7455736363810 |
10 | 2122221102210 |
11 | 749035538970 |
12 | 2a3373677b16 |
13 | 12518095b0b1 |
14 | 74a04ba7aa6 |
15 | 3a30ce6c790 |
hex | 1ee1e3c2482 |
2122221102210 has 96 divisors (see below), whose sum is σ = 6121414503360. Its totient is φ = 505757865600.
The previous prime is 2122221102179. The next prime is 2122221102233. The reversal of 2122221102210 is 122011222212.
It is a happy number.
2122221102210 is a `hidden beast` number, since 21 + 222 + 211 + 0 + 2 + 210 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18108181 + ... + 18225000.
It is an arithmetic number, because the mean of its divisors is an integer number (63764734410).
Almost surely, 22122221102210 is an apocalyptic number.
2122221102210 is an abundant number, since it is smaller than the sum of its proper divisors (3999193401150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2122221102210 is a wasteful number, since it uses less digits than its factorization.
2122221102210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36333264 (or 36333261 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 2122221102210 its reverse (122011222212), we get a palindrome (2244232324422).
The spelling of 2122221102210 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, two hundred ten".
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