| Base | Representation |
|---|---|
| bin | 10001110010010011001… |
| … | …100000101011110111000 |
| 3 | 11022211211000102211021000 |
| 4 | 101302103030011132320 |
| 5 | 130011121433143000 |
| 6 | 2333253411445000 |
| 7 | 154206151461060 |
| oct | 21622314053670 |
| 9 | 4284730384230 |
| 10 | 1222240131000 |
| 11 | 431392765749 |
| 12 | 178a658b6760 |
| 13 | 8b345105335 |
| 14 | 4322a1363a0 |
| 15 | 21bd744e000 |
| hex | 11c933057b8 |
1222240131000 has 512 divisors, whose sum is σ = 4998629376000. Its totient is φ = 270355968000.
The previous prime is 1222240130983. The next prime is 1222240131029. The reversal of 1222240131000 is 1310422221.
It is a happy number.
1222240131000 is a `hidden beast` number, since 12 + 222 + 401 + 31 + 0 + 0 + 0 = 666.
It is a super-2 number, since 2×12222401310002 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
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 127 ways as a sum of consecutive naturals, for example, 5754696 + ... + 5963304.
It is an arithmetic number, because the mean of its divisors is an integer number (9762948000).
Almost surely, 21222240131000 is an apocalyptic number.
1222240131000 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 1222240131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2499314688000).
1222240131000 is an abundant number, since it is smaller than the sum of its proper divisors (3776389245000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222240131000 is a wasteful number, since it uses less digits than its factorization.
1222240131000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208677 (or 208657 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 1222240131000 its reverse (1310422221), we get a palindrome (1223550553221).
The spelling of 1222240131000 in words is "one trillion, two hundred twenty-two billion, two hundred forty million, one hundred thirty-one thousand".
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