| Base | Representation |
|---|---|
| bin | 10111001111100001111100… |
| … | …011110100001011110011100 |
| 3 | 111101221100122112200120010000 |
| 4 | 113033201330132201132130 |
| 5 | 101344302242331133040 |
| 6 | 1001224140403014300 |
| 7 | 30350214064510350 |
| oct | 2717417436413634 |
| 9 | 441840575616100 |
| 10 | 102222310021020 |
| 11 | 2a631269093162 |
| 12 | b56b45096a390 |
| 13 | 45066a3b47547 |
| 14 | 1b3582c785460 |
| 15 | bc408468d130 |
| hex | 5cf87c7a179c |
102222310021020 has 480 divisors, whose sum is σ = 394620965544960. Its totient is φ = 21617955993600.
The previous prime is 102222310020991. The next prime is 102222310021021. The reversal of 102222310021020 is 20120013222201.
102222310021020 is a `hidden beast` number, since 1 + 0 + 222 + 231 + 0 + 0 + 210 + 2 + 0 = 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 = 102222310020984 and 102222310021002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102222310021021) by changing a digit.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6880345 + ... + 15867695.
It is an arithmetic number, because the mean of its divisors is an integer number (822127011552).
Almost surely, 2102222310021020 is an apocalyptic number.
102222310021020 is a gapful number since it is divisible by the number (10) 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 102222310021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197310482772480).
102222310021020 is an abundant number, since it is smaller than the sum of its proper divisors (292398655523940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102222310021020 is a wasteful number, since it uses less digits than its factorization.
102222310021020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8987455 (or 8987444 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 102222310021020 its reverse (20120013222201), we get a palindrome (122342323243221).
The spelling of 102222310021020 in words is "one hundred two trillion, two hundred twenty-two billion, three hundred ten million, twenty-one thousand, twenty".
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