| Base | Representation |
|---|---|
| bin | 10111001110000011101011… |
| … | …111101001101011010110000 |
| 3 | 111101120200102010021202001220 |
| 4 | 113032003223331031122300 |
| 5 | 101341123003341334300 |
| 6 | 1001105441453025040 |
| 7 | 30340002041165520 |
| oct | 2716035375153260 |
| 9 | 441520363252056 |
| 10 | 102121101121200 |
| 11 | 2a5a23523227a7 |
| 12 | b553906185180 |
| 13 | 44c9c94a48785 |
| 14 | 1b3098ad59680 |
| 15 | bc160e25ada0 |
| hex | 5ce0ebf4d6b0 |
102121101121200 has 480 divisors, whose sum is σ = 383785420541952. Its totient is φ = 22725795456000.
The previous prime is 102121101121187. The next prime is 102121101121213. The reversal of 102121101121200 is 2121101121201.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (102121101121187) and next prime (102121101121213).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 102121101121200.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 111878655 + ... + 112787745.
Almost surely, 2102121101121200 is an apocalyptic number.
102121101121200 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 102121101121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191892710270976).
102121101121200 is an abundant number, since it is smaller than the sum of its proper divisors (281664319420752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102121101121200 is a wasteful number, since it uses less digits than its factorization.
102121101121200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909473 (or 909462 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 15.
Adding to 102121101121200 its reverse (2121101121201), we get a palindrome (104242202242401).
Subtracting from 102121101121200 its reverse (2121101121201), we obtain a palindrome (99999999999999).
The spelling of 102121101121200 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, two hundred".
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