| Base | Representation |
|---|---|
| bin | 10000010101001001100… |
| … | …101110000101111100000 |
| 3 | 10222021122111222121101110 |
| 4 | 100111021211300233200 |
| 5 | 121341302100200000 |
| 6 | 2215312524503320 |
| 7 | 144035453650440 |
| oct | 20251145605740 |
| 9 | 3867574877343 |
| 10 | 1122221100000 |
| 11 | 3a2a27611350 |
| 12 | 1615b16aab40 |
| 13 | 81a95691560 |
| 14 | 3c45c760120 |
| 15 | 1e2d1705850 |
| hex | 10549970be0 |
1122221100000 has 2304 divisors, whose sum is σ = 5127619811328. Its totient is φ = 207360000000.
The previous prime is 1122221099971. The next prime is 1122221100017. The reversal of 1122221100000 is 11222211.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a zygodrome in base 10.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 11111099950 + ... + 11111100050.
It is an arithmetic number, because the mean of its divisors is an integer number (2225529432).
Almost surely, 21122221100000 is an apocalyptic number.
1122221100000 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 1122221100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2563809905664).
1122221100000 is an abundant number, since it is smaller than the sum of its proper divisors (4005398711328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1122221100000 is a wasteful number, since it uses less digits than its factorization.
1122221100000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 207 (or 179 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 1122221100000 its reverse (11222211), we get a palindrome (1122232322211).
1122221100000 divided by its reverse (11222211) gives a 5-th power (100000 = 105).
It can be divided in two parts, 1122221 and 100000, that added together give a palindrome (1222221).
The spelling of 1122221100000 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand".
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