| Base | Representation |
|---|---|
| bin | 11110100101110110001… |
| … | …100111110010100011100 |
| 3 | 21102222012110210121002200 |
| 4 | 132211312030332110130 |
| 5 | 233420322330321340 |
| 6 | 4245425243451500 |
| 7 | 304611011122125 |
| oct | 36456614762434 |
| 9 | 7388173717080 |
| 10 | 2102222120220 |
| 11 | 740602644782 |
| 12 | 29b511b26b90 |
| 13 | 12331454b941 |
| 14 | 73a68aa904c |
| 15 | 39a3c353330 |
| hex | 1e97633e51c |
2102222120220 has 144 divisors (see below), whose sum is σ = 6553665780480. Its totient is φ = 545059888128.
The previous prime is 2102222120203. The next prime is 2102222120279. The reversal of 2102222120220 is 220212222012.
2102222120220 is a `hidden beast` number, since 2 + 10 + 222 + 212 + 0 + 220 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 2102222120193 and 2102222120202.
It is a congruent number.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 9474064 + ... + 9693416.
It is an arithmetic number, because the mean of its divisors is an integer number (45511567920).
Almost surely, 22102222120220 is an apocalyptic number.
2102222120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2102222120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3276832890240).
2102222120220 is an abundant number, since it is smaller than the sum of its proper divisors (4451443660260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102222120220 is a wasteful number, since it uses less digits than its factorization.
2102222120220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 220844 (or 220839 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
Adding to 2102222120220 its reverse (220212222012), we get a palindrome (2322434342232).
The spelling of 2102222120220 in words is "two trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twenty".
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